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Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
www.youtube.com/watch?v=a502RejLz8s
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Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Female showing the classic signs of Polymorphism. While males are always consistent in their colour and pattern the females can produce several other different forms that mimic various unpalatable species. Found from India to China, Malaysia, the Philippine and Indonesia.
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Merci beaucoup à Pink-Kat (Kate) pour l'information sur le nom de ce superbe papillon !
Description
Adulte:
Le Mouchoir Volant a une envergure de 10 à 12cm.
Les mâles sont blancs, parfois légèrement verdâtres, un peu translucides, avec des taches brun foncé ou noires sur les ailes postérieures. Les ailes antérieures ont les marges costale et externe largement bordées de brun foncé ou de noir, avec, à l’apex, une petite tache de la même couleur que le reste des ailes. Les nervures des quatre ailes sont foncées, surtout sur les ailes postérieures. Le dessous des ailes présente les mêmes motifs que le dessus, mais dans des tons bruns cryptiques pour les ailes postérieures.
Les femelles sont hautement polymorphiques. En effet, elles peuvent avoir une quinzaine de formes différentes, dont cinq principales, les autres étant des variations de ces quatre formes ou des transitions. Lorsqu’elle n’est pas similaire aux mâles, une femelle de P. dardanus est mimétique d’espèces indigestes (mimétisme Batésien). Les quatre principales espèces imitées sont Danaus chrysippus (Monarque africain), Amauris niavius (Moine noir), Amauris albimaculatus (Profane) et Bematistes poggei (Vagabond). Ainsi, elle peut être noire et blanche; noire, blanche et rouge; ou encore noire, blanche et jaune.
Les mâles ont toujours les ailes postérieures terminées par une longue queue, tandis que les femelles n’en ont généralement pas.
Le corps est noir avec le ventre blanc.
Chenille:
Les chenilles sont vert feuille avec le ventre blanc et quelques taches blanc grisâtre ressemblant à des déjections d’oiseau.
Chrysalide:
Les chrysalides sont incurvées, un peu en forme de banane. Elles sont vertes avec un «plastron» jaune. Elles peuvent également être brunes selon la couleur du substrat auquel elles sont accrochées. La tête est bifide et les flancs sont pincés.
I put together a thing using a lot of random pieces from my inventory. The only new stuff I bought for my dark court build was a couple statues by a new friend, one of them in this picture! You can find his statue garden store Polymorph in world here:
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
I was pleased to spot one of these 😊 it was on its own. Hope it will be okay...
The cline—to make use of his term—is one in the proportions of polymorphs. The bridled form of Uria aalge, a mutant, which apparently depends on a single gene difference and is distinguished by a white circle around the eye continuing backwards as a line towards the region of the nape, represents a larger percentage of the guillemot population in the north of its range than in the south. It is clear that more details of this cline will reveal important facts, such as the groups that are situated on it and the relationships between them. During the past breeding season, the British Trust for Ornithology has organized a cooperative inquiry into the status of the bridled guillemot in the British Isles, and, although it is hoped to continue this inquiry during the coming season to fill in the remaining gaps, enough is now known to encourage a preliminary publication.
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Guillemot /Murre - Uria aalge
The common murre or common guillemot (Uria aalge) is a large auk. It is also known as the thin-billed murre in North America. It has a circumpolar distribution, occurring in low-Arctic and boreal waters in the North Atlantic and North Pacific. It spends most of its time at sea, only coming to land to breed on rocky cliff shores or islands.
Common murres have fast direct flight but are not very agile. They are more manoeuvrable underwater, typically diving to depths of 30–60 m (98–197 ft). Depths of up to 180 m (590 ft) have been recorded.
Common murres breed in colonies at high densities. Nesting pairs may be in bodily contact with their neighbours. They make no nest; their single egg is incubated on a bare rock ledge on a cliff face. Eggs hatch after ~30 days incubation. The chick is born downy and can regulate its body temperature after 10 days. Some 20 days after hatching the chick leaves its nesting ledge and heads for the sea, unable to fly, but gliding for some distance with fluttering wings, accompanied by its male parent. Chicks are capable of diving as soon as they hit the water. The female stays at the nest site for some 14 days after the chick has left.
Both male and female common murres moult after breeding and become flightless for 1–2 months. In southern populations they occasionally return to the nest site throughout the winter. Northern populations spend the winter farther from their colonies.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed.
The common murre nests in densely packed colonies (known as "loomeries"), with up to twenty pairs occupying one square metre at peak season.[citation needed] Common murres do not make nests and lay their eggs on bare rock ledges, under rocks, or the ground. They first breed at four to nine years old, but most individuals recruit into the breeding population at ages six or seven, although birds may disperse (permanently depart their natal colony) if space is limited. Annual survival probability for birds aged 6–15 is 0.895, and average lifespan is about 20 years. Breeding success increases with age up to age 9-10 to 0.7 fledglings per pair, then declines in the oldest age birds, perhaps indicating reproductive senesence.
High densities mean that birds are close contact with neighbouring breeders. Common murres perform appeasement displays more often at high densities and more often than razorbills.
Allopreening is common both between mates and between neighbours. Allopreening helps to reduce parasites, and it may also have important social functions. Frequency of allopreening a neighbour correlates well with current breeding success.
Allopreening may function as a stress-reducer; ledges with low levels of allopreening show increased levels of fighting and reduced breeding success.
Alloparenting behaviour is frequently observed. Non-breeding and failed breeders show great interest in other chicks, and will attempt to brood or feed them. This activity is more common as the chicks get older and begin to explore their ledge. There has also been a record of a pair managing to raise two chicks. Adults that have lost chicks or eggs will sometimes bring fish to the nest site and try to feed their imaginary chick.
At time of extreme food stress, the social activity of the breeding ledge can break down.
On the Isle of May colony in 2007, food availability was low. Adults spent more of their time-budget foraging for their chicks and had to leave them unattended at times. Unattended chicks were attacked by breeding neighbour which often led to their deaths. Non-breeding and failed breeders continued to show alloparental care.
In areas such as Newfoundland, the birds, along with the related thick-billed murre, are referred to as 'turrs' or 'tuirs', and are consumed. The meat is dark and quite oily, due to the birds' diet of fish. Eggs have also been harvested.
Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century to feed the growing city.
Population:
UK breeding:
950,000 pairs
Bruant à gorge blanche | White-throated Sparrow | Zonotrichia albicollis
Des couleurs franches...
J'ai rarement observé un adulte de cette espèce aux couleurs à la tête aussi franche et aussi nette. De toute beauté! Toujours au bout du terrain de la maison où nous habitions pour ce séjour, j'aurai observé ce magnifique adulte qui accompagnait son jeune. Je savais que nous retrouvions deux formes chez cette espèce, une forme blanche plus connue où les rayures de sa tête sont noires et blanches et une forme chamois où les rayures sont chamois et brunes, mais j’ignorais qu’ils étaient polymorphes, c’est à dire que presque toujours le mâle de forme blanche va se choisir une femelle de forme chamois et vice-versa. On leur attribue même des caractéristiques comportementales différentes chez l'une et chez l'autre, à lire sur Wikipedia (fr.wikipedia.org/wiki/Bruant_%C3%A0_gorge_blanche).
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Le Dompte-venin officinal
(Vincetoxicum hirundinaria)
est une plante herbacée vivace de la famille des Asclépiadacées.
Plante : polymorphe vivace de 10 cm à 120 m dressée en touffes.
Pilosité : finement pubescente.
Racine : souche rampante.
Tiges : simples dressées ou retombantes droites ou spiralées mais jamais volubiles.
Feuilles : fermes courtement pétiolées ovales ou oblongues lancéolées acuminées souvent un peu en cœur à la base.
Fleurs : blanc pur à blanc verdâtre jaunes ou jaunâtre vertes ou verdâtres.
Inflorescence : cymes corymbiformes assez fournies et pédonculées à pédicelles un peu plus longs que les fleurs.
Corolle : à lobes glabres pubescents ou non.
Calice : à lobes égalant le tube de la corolle ou plus courts.
Fruit : follicules de 4 à 6 cm glabres lancéolés acuminés renflés vers la base
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Hypolimnas misippus, the Danaid Eggfly, Mimic, or Diadem, is a widespread species of nymphalid butterfly. It is well known for polymorphism and mimicry. Seen in Zambia’s South Luangwa National Park.
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
🇫🇷Cette fleur dans les arbres m'a plu.... je n'ai pas encore trouvé son nom ....
Toutes les photos depuis hier sont prises depuis le bateau.
🇬🇧 I liked this flower in the trees.... I haven’t found its name yet .....
All photos since yesterday are taken from the boat
🇪🇸 Esta flor en los árboles me ha gustado.... Todavía no he encontrado su nombre .....
Todas las fotos desde ayer son tomadas desde el barco
🇩🇪 Diese Blume in den Bäumen hat mir gefallen.... Ich habe ihren Namen noch nicht gefunden .....
Alle Fotos seit gestern werden vom Boot aufgenommen
🇮🇹 Questo fiore negli alberi mi è piaciuto.... non ho ancora trovato il suo nome .....
Tutte le foto da ieri sono prese dalla barca
merci à Globetrotteur17 qui à trouvé l'info qui me semble bonne
Erythrina est un genre de plantes dicotylédones de la famille des Fabaceae, sous-famille des Faboideae, à répartition pantropicale, qui comprend 129 espèces acceptées.
Ses espèces sont distribuées un peu partout sur le globe dans les régions tropicales et subtropicales. Plusieurs espèces d’Erythrina ont de grandes fleurs rouges, ce qui est à l'origine de leur nom . Cependant toutes les espèces d'Erythrina n'ont pas que des fleurs rouges : le wiliwili (Erythrina sandwicensis) a des variations dans la couleur de ses fleurs, qui peuvent être orange, jaunes, saumon, vertes ou blanches, et cela naturellement. Ce polymorphisme est sans doute unique au sein de ce genre.
Coléoptère d’allure massive, l’abdomen étant élargi vers l’arrière. La tête est noire, et apparaît nettement séparée du thorax par une sorte de cou. Le thorax est aussi noir et velu. Mais cette espèce est assez polymorphe (d’où son nom) la taille et la forme des taches varie selon les individus.
Coloration : Les élytres sont jaunes ou orangées avec l’extrémité noire et deux bandes noires transversales, la première étant souvent constituée de deux tâches.
ETYMOLOGIE : Mylabris désignait en grec un insecte vivant dans les boulangeries et les moulins, variabilis = variable (allusion au polymorphisme de l’espèce).
En anglais, on le nomme « Orange blister beetle », le scarabée orange qui donne des cloques
L’espèce M.variabilis est répandue dans le sud de la France, et dans tous le sud-est de l’Europe.
HABITAT : Elle affectionne les prairies et lisières bien ensoleillées et fleuries.
Source : www.quelestcetanimal.com/coleopteres/le-mylabre-inconstant/
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
The Map (Araschnia levana) is a species of Lepidoptera (butterflies) known for its significant seasonal polymorphism.
Individuals born in spring (levana form) are clear: the upper side of the wings is orange strongly drawn in white and black (colors also present on the caterpillar).
Those of the summer generation (prorsa form) are black with a white stripe and a narrow dark red submarginal line, the underside being purplish
The vernacular name of 'Geographical Map' comes from the network pattern of white lines which adorns the backs of the wings, evoking a road network on a map. For the same reason, the species is called map in English.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
The Dark-throated Seedeater is one of the “capuchino” subgroup of seedeaters, these are largely southern South American species that often appear capped in the breeding male plumage. The group is very closely related, species limits are still being worked out, and several show polymorphisms, some of which have been considered separate species in the past. The male Dark-throated Seedeater is gray above, including the cap, and chestnut below. However, the throat to the upper-breast is a rich rusty-brown, which is definitely darker than either the belly or the cap. As is usually the case in this group, these seedeaters are often found in little groups, and sometimes even in mixed species flocks particularly during migration and the non-breeding season. It is a highly migratory species, breeding from NE Argentina to SC Brazil and migrating to various open country areas south of the Amazon Basin in winter. This is a species that specializes in foraging on unopened grass seeds, so the grass still on the stalk. They are small and light and can perch on larger grass stalks without breaking them, often handing down to retrieve the seeds. Conservation status on Birdlife - Near Threatened due to loss of habitat. doi.org/10.2173/bow.datsee1.01
Picture taken at Barra do Quarai - RS - Brazil.
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Good Stewards of Nature
Taken at Glen Rock N P. March 2022
The great pretender!
Hypolimnas misippus, the Danaid eggfly, mimic, or diadem, is a widespread species of nymphalid butterfly. It is well known for polymorphism and mimicry. Males are blackish with distinctive white spots that are fringed in blue. Females are in multiple forms that include male-like forms while others closely resemble the toxic butterflies Danaus chrysippus and Danaus plexippus.
The females mimic (in appearance) the similar-sized Plain Tiger, a toxic butterfly with the toxic Milkweed as its host plant. The vibrant colours of the Plain Tiger advertise its unpalatable nature to predators around, so the Danaid female sends out the same signal, regardless of it not being toxic
To aid this behaviour, the females also sometimes tend to move with plain tiger butterflies. There are very minute differences in appearance of the two butterflies.
L’aménagement réalisé par Yaacov Agam (né en 1928) pour l’Élysée répond à une commande faite à l’artiste par le chef de l’État en 1971. Excellent exemple d’espace pictural « cinétique » réalisé à l’échelle d’une pièce d’habitation et associant murs, plafonds, sol et portes d’entrée, le Salon porte à l’échelle de l’architecture intérieure les principes du « tableau polymorphique » réalisé à l’aide d’éléments colorés en biseau et offre au spectateur des compositions abstraites qui changent selon l’angle de vue que ce dernier adopte
IMG_20230111_173220
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
La pierre calcite jaune-orange est un cristal contenant essentiellement du carbonate de calcium. C’est aussi un minéral chimique ou biochimique qui renferme divers métaux. Il s’agit d’une espèce minérale qui présente de nombreux coloris. C’est aussi un cristal polymorphe, car il peut présenter différentes formes.
Cristaux de 10mm/7mm en moyenne
sur une gangue de grès très dur
échantillon de 10cm/4cm trouvé dans la vallée de Sainte-Marie-aux Mines , Haut-Rhin, France
Hypolimnas misippus, the Danaid eggfly,[1][2] mimic,[2] or diadem, is a widespread species of nymphalid butterfly. It is well known for polymorphism and mimicry. Males are blackish with distinctive white spots that are fringed in blue. Females are in multiple forms that include male-like forms while others closely resemble the toxic butterflies Danaus chrysippus and Danaus plexippus. They are found across Africa, Asia,[1] and Australia.[2] In the new world they are found in the West Indies, with strays in Central and North America
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
La Bergeronnette printanière est une espèce très polymorphe, forte de 10 sous-espèces dans son aire vaste de l'Ancien monde. Morphologiquement, c'est une bergeronnette typique avec de longues pattes, des ailes à longues tertiaires et une assez longue queue bordée de blanc et agitée dans un plan vertical.
Cinq sous-espèce sont connues en France, dont quatre peuvent fréquenter la Picardie, mais la majorité des individus appartient à une seule forme de l'espèce. En Picardie, la forme connue sous le nom de Bergeronnette flavéole, fréquente uniquement le littoral.
Le plumage du mâle adulte présente des constantes quelle que soit la sous-espèce, à savoir les parties supérieures vertes et les parties inférieures jaunes.
C'est la tête qui présente des variations de couleurs selon les ssp (sous espèces )., nettes chez les mâles nuptiaux, beaucoup moins chez les femelles.
Le mâle adulte nuptial "flava" a le dessus et les côtés de la tête gris de cendre, le menton et la gorge jaune-renoncule. Un net sourcil blanc court du bec à la nuque. Un trait loral noirâtre joint le bec à l'œil sombre souligné d'un arc blanc.
ssp lutea : tête toute jaune,
- ssp flavissima : tête vert-jaune, sourcil jaune, du jaune sur l'oreille et gorge toute jaune,
- ssp type flava : tête gris-cendre, sourcil blanc, du blanc sur l'oreille, gorge jaune,
- ssp simillima : comme la précédente mais gris plus clair, joues et menton blancs,
- ssp thunbergi : calotte et nuque gris sombre, côtés noirs jusque sous l'oreille, gorge toute jaune,
- ssp iberiae : comme flava, mais gris plus sombre et gorge blanche,
- ssp cinereocapilla : rappelle thunbergi, mais tête moins sombre et gorge blanche,
- ssp pygmaea : rappelle cinereocapilla, mais limitée à l'Egypte,
- ssp feldegg : tête toute noire jusque sous l'oreille, gorge jaune vif,
- ssp leucocephala : tête blanchâtre, gorge jaune.
Le Carte géographique (Araschnia levana) est une espèce de lépidoptères (papillons) connue pour son important polymorphisme saisonnier.
Les individus nés au printemps (forme levana) sont clairs : le dessus des ailes est orangé fortement dessiné de blanc et de noir (couleurs également présentes sur la chenille).
Ceux de la génération estivale (forme prorsa) sont noirs avec une bande blanche et une étroite ligne submarginale rouge foncé, le dessous étant violacé
Le nom vernaculaire de « Carte géographique » provient du motif en réseau de traits blancs qui orne le revers des ailes, évoquant un réseau routier sur une carte. Pour la même raison, l'espèce est appelée map en anglais.
Source: fr.wikipedia.org/wiki/Carte_g%C3%A9ographique_(papillon)
Pittosporum coccineum est un arbuste endémique de la moitié nord de la grande terre en Nouvelle-Calédonie. Le genre Pittosporum comporte environ 200 espèces dans le monde dont près d’un quart (45) endémiques à la Nouvelle-Calédonie. Dans la nature, les espèces de Pittosporum sont généralement reconnaissables grâce à la disposition des feuilles en pseudo-verticilles ou « touffes de feuilles » et à leurs fruits contenant des graines collantes. En Nouvelle-Calédonie, ce genre comporte plusieurs espèces potentiellement intéressantes en horticulture.
A l’état naturel, Pittosporum coccineum se rencontre sur tous les types de terrain à basse et moyenne altitudes en forêt sèche, en maquis minier et même en forêt humide, notamment sur la côte nord-est. Cette plante a par ailleurs la caractéristique d’avoir un feuillage très polymorphe.
De prime abord, lorsque l’on rencontre P. coccineum dans son milieu naturel, cette espèce ne parait pas intéressante d’un point de vue ornemental car elle forme des arbustes grêles, peu ramifiés et à floraison parcimonieuse. Suite à un travail de sélection massale et de mise au point de l’itinéraire technique, P. coccineum apparaît être une plante ornementale aux qualités indéniables.
Cet arbuste à croissance relativement rapide est attrayant avec son port buissonnant, ses petites feuilles et ses inflorescences terminales fournies de couleur rouge-orangé.
La Bergeronnette printanière est une espèce très polymorphe, forte de 10 sous-espèces dans son aire vaste de l'Ancien monde. Morphologiquement, c'est une bergeronnette typique avec de longues pattes, des ailes à longues tertiaires et une assez longue queue bordée de blanc et agitée dans un plan vertical.
Le plumage du mâle adulte présente des constantes quelle que soit la sous-espèce, à savoir les parties supérieures vertes et les parties inférieures jaunes. C'est la tête qui présente des variations de couleurs selon les ssp., nettes chez les mâles nuptiaux, beaucoup moins chez les femelles. En effet chez cette espèce, les sexes diffèrent sensiblement. Nous insisterons sur la sous-espèce type "flava" à laquelle nous sommes le plus habitués. En revanche, nous ne ferons qu'évoquer les autres sous-espèces sans les détailler, ce serait trop fastidieux. Les images montrent les différents phénotypes mâles.
Le mâle adulte nuptial "flava" a le dessus et les côtés de la tête gris de cendre, le menton et la gorge jaune-renoncule. Un net sourcil blanc court du bec à la nuque. Un trait loral noirâtre joint le bec à l'œil sombre souligné d'un arc blanc. Enfin, les couvertures auriculaires grises incluent une petite bande blanche. Les couvertures alaires et les tertiaires noirâtres sont largement bordées de clair. Bec et pattes sont noires.
La Bergeronnette printanière est un oiseau des milieux ouverts à semi-ouverts, volontiers humides, avec un accès au sol facile.
C'est ainsi qu'on la trouve en bordure des cours d'eau, des plans d'eau et des marais, dans les prairies humides, au nord dans les espaces ouverts et herbacés de la taïga, à l'est dans les milieux steppiques. Elle s'est bien adaptée aux espaces anthropisés. Elle niche régulièrement en cultures, particulièrement de céréales. Elle va se nourrir dans les prairies pâturées au contact des animaux. Elle y a l'accès au sol assuré par le pâturage et sa chasse aux insectes y est plus efficace. C'est avant tout un oiseau de plaine ou de moyenne montagne, mais localement, elle peut se cantonner plus haut, par exemple jusqu'à 2 500 m dans le Caucase.
En migration et en hivernage, les milieux fréquentés sont un peu les mêmes, espaces bien dégagés, avec quelques ligneux refuges, et un sol bien accessible.
Source : oiseaux.net
_46A0226-CR3
Coming to the Mancave event on the 17th Oct
[Vile XXX] - Vikings Terror Throne
10 Single Male Poses
10 Single Female Poses
20 Couples
25 Sex Animations
65 Animations
(Animations Supplied & Powered by Polymorph)
[Vile XXX] - Vikings Terror Throne Texture HUD To change all the textures
Taken at The Forgotten
Skulls under foot doesnt come with throne only there cuase I am a short ass
Contrairement à la majorité des membres de la famille des corvidés, le Geai des chênes a un plumage coloré qui attire l'attention. Pour cela, il se reconnaît facilement. Il n'y a pas de dimorphisme sexuel et tous les plumages se ressemblent. Nous décrivons ici la sous-espèce type "glandarius" d'Europe du Nord, celle qui occupe la France.
La plus grande partie du corps est d'un brun-beige nettement nuancé de rose vineux ou de roussâtre. La tête est la plus vivement colorée avec les joues plus rousses. Elle contraste avec le manteau et les scapulaires, parties les plus pâles. La face est blanchâtre, avec de nettes moustaches noires sous les yeux et de fines stries noires sur les plumes du front et l'avant de la calotte que l'oiseau hérisse lorsqu'il est excité. L'iris est blanc bleuté. Le bec assez court est noir.
L'aile est majoritairement noire, mais cela ne se voit bien qu'en vol. Lorsque l'aile est fermée, on perçoit surtout à l'avant une tache bleu vif. Ce sont les couvertures primaires et les grandes couvertures externes qui sont bleu-ciel et barrées de bleu sombre. À l'arrière de cette tache se distingue un net panneau blanc sur fond noir, formé par les bases blanc pur des cinq rémiges secondaires les plus externes. Enfin, juste derrière se trouve le châtain vif des rémiges tertiaires les plus internes, teinte qui peut gagner aussi la seconde paire. Le tout fait un patron d'aile coloré vraiment typique de l'espèce. Les rémiges primaires sont liserées de blanc, d'où une bande pâle visible le long du bord externe de l'aile.
Les couvertures sus- et sous-caudales ainsi que le croupion sont blancs et, lorsque l'oiseau est en vol, on ne peut manquer de voir la nette tache blanche à la base de la queue noire qui signe également l'espèce. Les pattes sont brun chair.
Avec 34 sous-espèces décrites, l'espèce est très polymorphe, mais toujours reconnaissable comme telle. On observe simplement des variations de teinte du plumage, en particulier au niveau du manteau qui peut être gris-beige et/ou de la calotte qui peut être toute noire comme chez la ssp cervicalis d'Afrique du Nord.
Source : oiseaux.net
_46A0250-CR3
(calidris pugnax)
Won't be updating or replying for a while. After I get my gear maintenance in order it's time to hit the trails again and hopefully get to at least practicing some more scenery shooting. Hope everybody has good luck and opportunities on their hunt to feed their memory cards!
Cet oiseau vit essentiellement sur le sol, seul, en couple ou en petits groupes. Il dort dans les arbres.
Le mâle a un plumage noir sur le dessus, blanc sur le dessous, un bec jaune, court, crochu, aplati transversalement, surmonté d'un tubercule jaune. Il a une huppe de plumes bouclées sur la tête. Les pattes sont grises.
La femelle est polymorphique. Il en existe trois types :
une avec des rayures blanches sur la tête, le cou, le dos et les ailes ;
une avec la tête noire et un plumage brun rougeâtre ;
une avec la tête noire et un plumage brun foncé.
Les trois ont la queue rousse avec des rayures blanches, la huppe bouclée est présente, le bec jaune sans tubercule et les pattes blanches.
Merci beaucoup à tous pour votre aimable commentaire et vos favoris très appréciés - bien cordialement ! au plaisir !
Thank you very much to all for your kind comment and your very appreciated favorites - well cordially - au plaisir -
Herzlichen Dank an alle für Ihren freundlichen Kommentar und Ihre beliebten Favoriten - herzlich! zum Vergnügen
The brown morph plumage is the least common phenotype of the red-footed booby in the Hawaiian Islands. They are more common in the eastern tropical Pacific. To me they are an unusual and attractive bird! ‘Ā, red-footed booby, Sula sula.
Pittosporum coccineum est un arbuste endémique de la moitié nord de la grande terre en Nouvelle-Calédonie. Le genre Pittosporum comporte environ 200 espèces dans le monde dont près d’un quart (45) endémiques à la Nouvelle-Calédonie. Dans la nature, les espèces de Pittosporum sont généralement reconnaissables grâce à la disposition des feuilles en pseudo-verticilles ou « touffes de feuilles » et à leurs fruits contenant des graines collantes. En Nouvelle-Calédonie, ce genre comporte plusieurs espèces potentiellement intéressantes en horticulture.
A l’état naturel, Pittosporum coccineum se rencontre sur tous les types de terrain à basse et moyenne altitudes en forêt sèche, en maquis minier et même en forêt humide, notamment sur la côte nord-est. Cette plante a par ailleurs la caractéristique d’avoir un feuillage très polymorphe.
De prime abord, lorsque l’on rencontre P. coccineum dans son milieu naturel, cette espèce ne parait pas intéressante d’un point de vue ornemental car elle forme des arbustes grêles, peu ramifiés et à floraison parcimonieuse. Suite à un travail de sélection massale et de mise au point de l’itinéraire technique, P. coccineum apparaît être une plante ornementale aux qualités indéniables.
Cet arbuste à croissance relativement rapide est attrayant avec son port buissonnant, ses petites feuilles et ses inflorescences terminales fournies de couleur rouge-orangé.
Some individuals in the North Atlantic, known as "bridled guillemots", have a white ring around the eye extending back as a white line. This is not a distinct subspecies, but a polymorphism that becomes more common the farther north the birds breed—perhaps character displacement with the northerly thick-billed murre, which has a white bill-stripe but no bridled morph. The white is highly contrasting especially in the latter species and would provide an easy means for an individual bird to recognize conspecifics in densely packed breeding colonies.
The common murre is 38–46 cm (15–18 in) in length with a 61–73 cm (24–29 in) wingspan. Male and female are indistinguishable in the field and weight ranges between 945 g (2 lb 1+1⁄2 oz) in the south of their range to 1,044 g (2 lb 5 oz) in the north. A weight range of 775–1,250 g (1 lb 11+1⁄2 oz – 2 lb 12 oz) has been reported. In breeding plumage, the nominate subspecies (U. a. aalge) is black on the head, back and wings, and has white underparts. It has thin dark pointed bill and a small rounded dark tail.
After the pre-basic moult, the face is white with a dark spur behind the eye. Birds of the subspecies U. a. albionis are dark brown rather than black, most obviously so in colonies in southern Britain. Legs are grey and the bill is dark grey. Occasionally, adults are seen with yellow/grey legs. In May 2008, an aberrant adult was photographed with a bright yellow bill
This image was taken in the Farne Islands, off the coast of Northumberland, near Seahouses, in the north of England