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Gavia immer
One of several adults observed on a blustery day in Ann Arbor, Michigan. These emblems of the northwoods migrate through at this time of year, before nesting in northern Michigan's inland lakes throughout the summer months.
A very large bird with a wingspan of 120-150 cm and very difficult too photograph. I have only seen 3 pairs and they tend to swim around the middle of large lakes. I have managed to photograph this bird once so far this year.
Iceland is the only breeding site in the eastern Atlantic but does winter around the coast of the British Isles.
Thanks for stopping by, comments are much appreciated.
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Zukunft immer noch ungeklärt ... aber »draussen keine Kännchen« mehr.
www.abendblatt.de/hamburg/article227303989/Cafe-Seeterras...
Die Birke in unserem Garten ist der Lieblingsplatz des Winzlings zum Singen. / The birch in our garden is the tiny birds favorite place to sing.
Best large and View On Black
[order] Gaviiformes | [family] Gaviidae | [latin] Gavia immer | [UK] Loon | [FR] Plongeon huard | [DE] Eistaucher | [ES] Colimbo Grande | [IT] Strolaga maggiore | [NL] Ijsduiker | [IRL] Great Northern Diver
Measurements
spanwidth min.: 122 cm
spanwidth max.: 148 cm
size min.: 73 cm
size max.: 88 cm
Breeding
incubation min.: 24 days
incubation max.: 25 days
fledging min.: 70 days
fledging max.: 77 days
broods 1
eggs min.: 1
eggs max.: 3
Physical characteristics
The Common Loon in summer is very striking with its black-and-white checkered back, glossy black head, white belly and wing lining, and characteristic white necklace around the throat. All loons have greyish feathers in the winter, and immature birds tend to resemble adult birds in winter plumage. The white feathers of the belly and wing linings are present year-round.
Loons' habit of swimming low in the water helps to distinguish them from other waterbirds, such as ducks and geese. Loons most resemble the grebes, but can be identified by their larger size, thicker necks, and longer bills. In flight, loons can be recognized by their humpbacked profile, with head and neck held low and feet pressed back towards the body and projecting beyond the tail.
Males and females look the same, although males are generally larger. Adults are large-bodied, weighing from 2.7 to over 6.3 kg and measuring almost a metre from bill tip to outstretched feet. The bill is quite large, averaging 75 mm in length, and is black in colour throughout the year.
The skeleton and muscular system are designed for swimming and diving. Loons are streamlined. Their legs are placed far back on their body, allowing for excellent movement in water but making them ungainly on land. The head can be held directly in line with the neck during diving to reduce drag, and the legs have powerful muscles for swimming.
Habitat
Hunting, feeding, resting, preening, and caring for young are the loon's main activities. The bird spends long rest periods motionless on the water. It may rouse itself to stretch a leg or wing at intervals, occasionally comically waggling a foot. When swimming on top of the water it will sit erect with neck slightly curved. The loon will peer underwater, moving its head from side to side to locate prey. It then aims and dives quickly. It will stay underwater for almost a minute and can dive to depths of 80 m. During the dive, feathers are compressed and air is forced from between the feathers and from the air sacs in the body. Loss of air from the air sacs also allows the loon to quietly sink below the water surface to avoid danger.
Adult loons may fly to different lakes to feed. The adaptations that make loons such efficient divers also make them heavy and slow to take wing.
Common Loons spend most of the time on water and have to pull themselves onto land to nest. They generally move one foot at a time to walk, shuffling along with their breast close to the ground. The loon returns to the water by sliding in along its breast and belly. At night, loons sleep over deeper water, away from land for protection from predators.
Other details
This bird inhabits the lakes of the boreal regions of North America, Greenland and Island, moving to coastal waters in winter. The population of Greenland and Island - altogether about 3500-4000 birds - is wintering along the British and Norwegian coasts. Small numbers of individuals reach the coasts from Denmark to Portugal
Feeding
Loons are predators; their diet in summer consists of fish, crayfish, frogs, snails, salamanders, and leeches. Adult loons prefer fish to other food, and seem to favour perch, suckers, catfish, sunfish, smelt, and minnows.
Conservation
This species has a large range, with an estimated global Extent of Occurrence of 10,000,000 km². It has a large global population estimated to be 580,000 individuals (Wetlands International 2002). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern. [conservation status from birdlife.org]
Breeding
Loons arrive in pairs on northern lakes in the spring as soon as the ice thaws. They are solitary nesters. Small lakes, generally those between 5 and 50 ha, can accommodate one pair of loons. Larger lakes may have more than one pair of breeding loons, with each pair occupying a bay or section of the lake. Until recently, loons were thought to mate for life. Banding studies have shown that loons will sometimes switch mates after a failed nesting attempt, even between nestings in the same season. Courtship and mating are a quiet time, with the pair swimming and making short dives together. Eventually the male leads the female to a suitable spot on land for mating. Nest building then begins.
Loons build their nests close to the water, with the best sites being completely surrounded by water, such as on an island, muskrat house, half-submerged log, or sedge mat-a clump of grass-like water plants. Generally the birds can slip directly from the nest to water. The same sites are often used from year to year. Loons will use whatever materials are on hand to build their nests. Researchers have found tree needles, leaves, grass, moss, and other vegetation under loon eggs. If material is not handy, loons will lay their eggs directly on the mud or rock. Sometimes clumps of mud and vegetation are collected from the lake bottom to build the nest. Both the male and female help in nest building and with incubation, or warming the eggs, which lasts until hatching, usually 26 to 31 days. If the eggs are lost, the pair may renest, often in the same general location.
Usually two eggs are laid in June, and towards the end of the month loon chicks covered in brown-black down appear on the water. Loon chicks can swim right away, but spend some time on their parents' backs to rest, conserve heat, and avoid predators such as large carnivorous fish, snapping turtles, gulls, eagles, and crows. After their first day or two in the water, the chicks do not return to the nest.
Chicks are fed exclusively by their parents for the first few weeks of life, and up until eight weeks of age the adults are with them most of the time, providing most food. After this time the chicks begin to dive for some of their own food and by 11 or 12 weeks of age, the chicks are providing almost all of their own food and may be able to fly. Chicks are fed small food items early in their life including snails, small fish, crayfish, minnows, and some aquatic vegetation. As they grow, they require more protein, and usually are fed more fish, if available. At migration time, the young are able to look after themselves, and the adults generally leave first, with young following soon after.
Sometimes loons gather into small groups in the summer. In September, group feeding is quite common as loons gather on larger lakes while migrating. Loons are also usually found in groups on the wintering grounds. The life expectancy of the loon may be 15 to 30 years.
Migration
From Iceland and Greenland main departures, singly or in small parties, September-October, though some winter southern coasts. Minority reach winter quarters (e.g. Scotland) from mid-August, probably mainly immatures or failed breeders. Spring return early May to mid-June according to latitude and weather, remaining in bays and fjords until thaw of inland ice. Pre-breeders summer chiefly in northern coastal waters, some regularly in Shetland, but seldom North Sea.
Immer lebe die Sonne / Пусть всегда будет солнце
(70. Jahrestag 2018, Pioniergeburtstag am 13.Dezember)
Plongeon imbrin - Gavia immer
Chausey, Normandy, France
This is the less common of the three Loons that can be found off the French Coasts in Wintertime
Several were visible in "Le Sound", the peaceful channel in front of Chausey Main Island, it is believed they were taking shelter from the frequent storms that have occurred in the area in the last two months, as Loons are not usually that easy to see!
This is what a protective Loon parent does when you get to close to their young, they try to throw the entire lake into the air, or maybe in your face. I took the hint and left the area.
These photos are the last of my series of Loon photos. My next camping trip, I hope to have some sunlight. All these Loon shots were taken under very smoky skies, which made the images a bit dark.
Common Loon chick (Gavia immer) goes for a ride atop its daddy’s back on a lake in northern Wisconsin. This view demonstrates just how far back on its body the little diver’s legs are, perfectly adapted for life on and in the water. It will only go ashore again to nest (or if injured or ill) when it comes to breeding age in 3-5 years. By then it will have acquired the beautiful graphic black and white plumage and signature red eye like the adult. Taken in Lincoln County, WIsconsin on June 9, 2015.
Nach der Hochwasserkatastrophe im Juli 2021 ist die beschädigte Pontonbrücke über die Wupper immer noch gesperrt.
Foto-Aufgabe 8/23: Z fc komplett manuell mit manuellem Objektiv TTArtisan 35 f1.4.
The old cinema in the village
Ich mit 18 vor den Kinoschaukästen des Kneipiers Otto Adolf, dessen Kino aus den 1920ern, vormals „Metropol“, zuletzt seltsamerweise „Kurbel-Lichtspiele“ hieß, obwohl es selbstverständlich elektrifiziert war. Als Jugendlicher bekam ich da allerdings fast nie aktuelle Blockbuster zu sehen, sondern immer nur die Highlights der vorletzten Saison wie Terence-Hill-Bud-Spencer-Streifen, Bayern-Pornos, Zombie- oder drittklassige Katastrophenfilme, unzählige Bruce-Lee-Klamotten, David-Hamilton-Schmusestückchen wie „Bilitis“ und „Zärtliche Cousinen“, Pierre Richard, Jean-Paul Belmondo oder die ungezählten Trash-„Godzilla und King Kong“-Filmchen aus Japan. Wir liebten das Kino, aber es wurde 1986 oder `87 endgültig geschlossen.
Me, aged 18, in front of the cinema showcases of the bar owner Otto Adolf, whose cinema from the 1920s, formerly known as "Metropol", was strangely called "Crank Light Plays", although it was of course electrified. As a teenager, I almost never saw current blockbusters there, but only the highlights of the penultimate season, such as cheap action films, Bayern porn, third-rate disaster films, horror movies, countless Bruce Lee pictures, David Hamilton soft porn like "Bilitis", Pierre Richard, Jean-Paul Belmondo or the old Japanese Godzilla stuff. We all loved this theatre, but it was finally closed down in 1986 or `87.
Voerde-Friedrichsfeld 1983
Auf den RE Linien R13/R14/R15 Barcelona - Tarragona...Lleida/Reus/Port Aventura etc. ersetzten immer mehr modernisierte ex. Rodalies 447er die angezählten 470er aus den 70ern. Beim Umbau der Triebzüge erhielten sie jedoch keinen Neulack, somit sieht es von weitem eher wie eine Regionalbahn aus :D Am 31.12.2016 rattern zwei 447er auf einer dieser Linien durch Roda de Bará in Richtung Tarragona.
Poco a poco se ven mas 447 modernizados en las lineas R13/R14/R15 Barcelona - Tarragona...Lleida/Reus/Port Aventura. Los trenes de la serie 470 de los años 70 son viejos y por eso cada vez hay menos de ellos. Al modernizar los 447, se quedaron con el diseño de Rodalies Renfe y por eso de lejos no hay diferecias con los "normales" en Rodalies. El 31 de diciembre 2016 dos 447 modernizados pasan por la costa dorada cerca de Roda de Bará en dirección Tarragona.
c'è ancora luce da qualche parte -
in particolare per Stefania, che è sempre così cara con me, sempre disponibile, sempre attenta e preoccupata, ma anche per tutti voi che mi avete sopportato, me e la mia depressione, in questi ultimi mesi (so che alle volte posso proprio essere una palla :-(); a volte le cariche negative di altre persone ci contagiano rendendoci prigionieri, ma poi la forza delle persone positive attorno a noi ci aiuta a rialzarci.
Cerco di fare il mio meglio, ve lo prometto! :-)
Insbesondere für Stefania, die mir gegenüber immer so lieb, hilfsbereit und aufmerksam ist, aber eigentlich auch für Euch alle, die mir in diesen schweren Monaten beigestanden und mich und meine Depression ausgehalten habt (ich weiß, ich kann sehr schwer zu verdauen sein :-(); manchmal kann uns die negative Ladung einiger Leute uns anstecken und aus uns Gefangene machen, aber dann kann uns die positive Kraft der positiven Leute um uns dabei helfen, wieder aufzustehen (und aufzuerstehen).
Ich versuche mein Bestes zu tun, ich versprech's Euch! :-)