View allAll Photos Tagged Variable
Pictured at Matiu/Somes Island, Wellington, New Zealand. The variable oystercatcher is a species of wader in the Haematopodidae family. It is endemic to New Zealand. The Maori name is torea-pango. They are also known as 'red bills'.
"Variable" refers to the frontal plumage, which ranges from pied through mottled to all black. They are polymorphic meaning they have different genetic variants. Blacker birds are more common in the south. All Stewart Island variable oystercatchers are black. The have pink legs, an orange eye ring and red beaks. They are often seen in pairs on the coast all around New Zealand. During breeding, the pair will defend their territory, sometimes aggressively. Once mated pairs rarely divorce. After breeding they may be seen within flocks, or on the edges of flocks, of black and white South Island Pied Oystercatcher (SIPO) which also have vivid orange beaks. After breeding they may even form small flocks of their own. Males are around 678 grams and females slightly larger at around 724 grams. Variables can be identified as they are slightly larger than the SIPO - SIPO are around 550 grams. Occasionally totally black but if they are pied (black and white) they can be easily confused with SIPO. The variable species has less definition between the black and the white area, as well as a mottled band on the leading edges of the underwing. Variables also have a smaller white rump patch which is only a band across the base of the tail rather than a wide wedge shape reaching up to the middle of the back as in the SIPO. When mottled they are sometimes called 'smudgies'. They feed on molluscs, crabs and marine worms. After heavy rain, they sometime go inland in search of earthworms. They can open a shellfish by either hammering a hole in it or getting the bill between the two shells (of a bivalve) and twisting them apart. They breed in North Island, South Island, Stewart Island, and Chatham Islands. They do not breed inland or beside rivers although the SIPO does. They nest on the shore between rocks or on sand dunes by making a scrape out of the sand or shingle, sometimes lined with some seaweed. When in flight they make a high pitched 'kleep kleep' sound. They usually lay 2-3 eggs but they can lay up to 5. The eggs are typically stone coloured with small brown patches all over. Eggs hatch in 25-32 days. Chicks are well camouflaged by their colour and can fly in about 6 weeks. The bird lives up to about 27 years.
Pictured at Matiu/Somes Island, Wellington, New Zealand. The variable oystercatcher is a species of wader in the Haematopodidae family. It is endemic to New Zealand. The Maori name is torea-pango. They are also known as 'red bills'.
"Variable" refers to the frontal plumage, which ranges from pied through mottled to all black. They are polymorphic meaning they have different genetic variants. Blacker birds are more common in the south. All Stewart Island variable oystercatchers are black. The have pink legs, an orange eye ring and red beaks. They are often seen in pairs on the coast all around New Zealand. During breeding, the pair will defend their territory, sometimes aggressively. Once mated pairs rarely divorce. After breeding they may be seen within flocks, or on the edges of flocks, of black and white South Island Pied Oystercatcher (SIPO) which also have vivid orange beaks. After breeding they may even form small flocks of their own. Males are around 678 grams and females slightly larger at around 724 grams. Variables can be identified as they are slightly larger than the SIPO - SIPO are around 550 grams. Occasionally totally black but if they are pied (black and white) they can be easily confused with SIPO. The variable species has less definition between the black and the white area, as well as a mottled band on the leading edges of the underwing. Variables also have a smaller white rump patch which is only a band across the base of the tail rather than a wide wedge shape reaching up to the middle of the back as in the SIPO. When mottled they are sometimes called 'smudgies'. They feed on molluscs, crabs and marine worms. After heavy rain, they sometime go inland in search of earthworms. They can open a shellfish by either hammering a hole in it or getting the bill between the two shells (of a bivalve) and twisting them apart. They breed in North Island, South Island, Stewart Island, and Chatham Islands. They do not breed inland or beside rivers although the SIPO does. They nest on the shore between rocks or on sand dunes by making a scrape out of the sand or shingle, sometimes lined with some seaweed. When in flight they make a high pitched 'kleep kleep' sound. They usually lay 2-3 eggs but they can lay up to 5. The eggs are typically stone coloured with small brown patches all over. Eggs hatch in 25-32 days. Chicks are well camouflaged by their colour and can fly in about 6 weeks. The bird lives up to about 27 years.
Taken on Pat Brown's very interesting and informative butterfly walk. Just had my kit lens with me. El Moro Elfin Forest Natural Area, Los Osos, CA.
Variable Sunbird - Cinnyris venustus fazoqlensis - Разноцветная нектарница
Bishoftu Lake, Debre Zeyit, Oromia Region, Ethiopia, 01/05/2015
Also abundant locally in stillwater habitats. Midchannel of Neponset River below MBTA bridge, Neponset River, Milton/Mattapan, MA 9/20/14
Variable Sunbird - Cinnyris venustus - Разноцветная нектарница
Crescent Island Game Park, Lake Naivasha, Nakuru County, Kenya, 07/25/2017
Variable Checkerspot (Euphydryas chalcedona). Hidden Villa. Los Altos Hills, Santa Clara Co., Calif.
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Martes 08 de marzo. Alumnos de 1ro de Secundaria (Reds 2026) observaron un experimento en clase de Ciencia y tegnología.
This is how they did it before LEDs, flip-dots - neon signs do the job. On the New Jersey Turnpike between the Delaware River and Camden.
Variable Hawks occupy open habitats at all elevations. The Red-backed race inhabits the widest range of areas of the Variable Hawk races, including above tree line in mountains, Pacific coastal foothills, Patagonian steppes, agricultural areas and edges of river galleries, beech woods and humid premontane and lowland forests. Though often the most likely race to be found in lowlands, even the Red-backed is less than common below an elevation of 500 m (up to 3,000 m). The Juan Fernandez race is found on the islands' volcanic slopes and barren grazed grasslands at all elevations. The Puna race are often a common element above tree line in paramo and puna habitat, at higher elevations (5,000+ m) than almost any other raptor. Smaller numbers of the latter race may visit mountain scrub and stunted Polylepis woodland at as low 900 m (but rarely below 2,900 m).
In all behavioral aspects, the Variable Hawk is a typical Buteo. They are most often seen soaring on warm thermals but may be seen on almost any type of raised perch (from sign posts to large trees). They prey on almost any small to medium-sized animals that can be caught, but smallish mammals comprise more than 90% of prey in some studies. The most commonly recorded prey includes cavies, tuco-tucos, rabbits, mice and paramo rats. Earthworms, weevils, orthopterans and other invertebrates are often taken. Birds are sometimes taken, including tired petrels around Juan Fernández Islands. Other prey include other rodents & lagomorphs, frogs, lizards, snakes, and fish. The Variable Hawk hunts in the typical Buteo style: prey being spotted while soaring from the air and pinned on the ground.
Breeding is at various seasons and may be variable for all races. They build large stick nests on any elevated structure available, and sometimes breed cooperatively.
Martes 08 de marzo. Alumnos de 1ro de Secundaria (Reds 2026) observaron un experimento en clase de Ciencia y tegnología.
Taken at DeChambeau, north pond, September 22. Severe backlighting limited image quality, but we get a decent view of the head, along with the terminal appendages. Variable Darner may not be common here, but it seems late for a California Darner to still be flying. Closer view of face in a second photo here. One reviewer raised the possibility of California Darner, but the consensus agreed that it is a Variable Darner.