Wednesday, May 9, 2012

Black-Backed Woodpecker

Kicau Nusantara Black-backed woodpecker is a resident of the boreal coniferous forest. It often frequents old forest fire areas or old dead trees where wood-boring beetles are common. It seek its food within trunks and fallen logs, where it strips bark from trees to gain access to the beetles. The Black-backed Woodpecker (Picoides arcticus) also known as the Arctic Three-toed Woodpecker is a medium-sized woodpecker inhabiting the forests of North America. It is a medium sized woodpecker (23 cm long).
The plumage of adults is black on the head, back, wings and rump. They are white from the throat to the belly; the flanks are white with black bars. Their tail is black with white outer feathers. There is an element of sexual dimorphism in the plumage, with the adult male possessing a yellow cap. Unlike all other woodpeckers except the related American and Eurasian Three-toed Woodpeckers, this species has three-toed backed woodpecker,woodpecker identification,woodpecker speciesTheir breeding habitat is boreal forest across Canada, Alaska and the north-western United States. In particular the species is a burnt-forest specialist, feeding on the outbreaks of wood-boring beetles that feed on recently burnt trees. The most important wood boring beetles taken are in the families Cerambycidae and Buprestidae, along with engraver beetles and Mountain pine beetle. Most food is obtained by pecking, a smaller proportion is obtained by gleaning off branches. Black-backed Woodpecker are generally non-migratory but historically have undertaken intermittent irruptions. yellow bellied woodpecker,black backed woodpecker range,hairy woodpeckersNest excavation occurs in April and May; a fresh nest is drilled each year into the sapwood of dead trees. Abandoned nests are used by other species of bird to nest in. The female lays 3 or 4 eggs, and incubation duties are shared between both parents, although the male alone incubates during the night. Upon hatching the altricial chicks are brooded until the nestling phase. Both parents feed the chicks, which take about 24 days to fledge.
The call note of the Black-backed Woodpecker is a single, sharp pik, and is lower pitched than the call of the American Three-toed Woodpecker. Wikipedia
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