The black-backed woodpecker (Picoides arcticus) also known as the Arctic three-toed woodpecker is a medium-sized woodpecker (23 cm (9.1 in) long) inhabiting the forests of North America.
|Male in Brunswick, Vermont, United States|
|Female in Quebec, Canada|
|Range of P. arcticus Resident range Occasional winter range|
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 feet.
Habitat and breedingEdit
Their breeding range is boreal forest across Canada, Alaska, the north-western United States, as well as northern Wisconsin, Minnesota, and Upper Michigan. 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 woodpeckers are generally non-migratory but historically have undertaken intermittent irruptions.
Nest 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 three or four 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.
- BirdLife International (2012). "Picoides arcticus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- ebird. "eBird Range Map--Black-backed Woodpecker". ebird.org. Retrieved 2017-07-10.
- "Minnesota Breeding Bird Map List: Minnesota DNR". www.dnr.state.mn.us. Retrieved 2017-07-10.
- "TaxonomicListing". www.mibirdatlas.org. Retrieved 2017-07-10.
- Dixon, Rita D., and Victoria A. Saab. (2000). Black-backed woodpecker (Picoides arcticus), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online: http://bna.birds.cornell.edu/bna/species/509
- National Geographic's Field Guide to the Birds of North America, Third Edition; Describes call note
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