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 NR    American Three-toed Woodpecker* Id (Atlas):
    Picoides dorsalis

Description (10)
Image of American Three-toed Woodpecker
 

Other Names (World)
American Three-toed Woodpecker, White-backed Three-toed Woodpecker, Three-toed Woodpecker (with Ptridactylus)

Family
Picidae (Woodpeckers)

Size
22 cm

First Described (Guide)
Baird, 1858

Habitat
Mature conifer forests. From 360 - 3,350 m.

Range (Guide)
Canada (B), USA (B).

Population
Estimated population is 800,000 (2010).

Status NR
Habitat degradation and destruction through logging, fire suppresion, removal of dea or insect-infested trees are the main threats.

For more information see BirdLife International Species Factsheet.

Voice
Xeno-Canto Sound Files (more (80)...)

 
American Three-toed Woodpecker (Picoides dorsalis) [XC79280]
     by Andrew Spencer from Square Lake Bog, Aroostook Co., Maine, United States (drumming)

 
American Three-toed Woodpecker (Picoides dorsalis) [XC335539]
     by Thomas Magarian from Logging Creek Area GNP, Flathead County, Montana, United States (drumming)

Subspecies
Picoides tridactylus (Sibley and Monroe 1990, 1993) has been split into Three-toed Woodpecker (Picoides tridactylus) and American Three-toed Woodpecker (Picoides dorsalis) following AOU (2003).

Forms a superspecies with Three-toed Woodpecker (Picoides tridactylus), and commonly treated as conspecific; genetic evidence, however, coupled with geographical isolation and differences in plumage, indicate that the two are probably better considered separate species. Subspecies intergrade. Labrador birds named as separate subspecies labradorius, supposedly larger and darker with more barred flanks than bacatus, but differences thought not to be constant or significant, and new taxon subsequently abandoned by describer.

The following 3 subspecies are recognised:

  • fasciatus Baird, SF, 1870   -  North-western and central Alaska east to north-western Canada (east to north-western and central Mackenzie and northern Saskatchewan) and south to Oregon, northern Idaho and western Montana.
  • bacatus Bangs, 1900   -  Northern Manitoba and northern Ontario east to northern Quebec, Labrador and Newfoundland, south to Great Lakes, north-eastern New York, northern New Hampshire and north-eastern Maine.
  • dorsalis Baird, 1858   -  Rocky Mts from Montana to east-central Nevada, Arizona and north-western New Mexico.



References
See References.


Files:
JPG files for American Three-toed Woodpecker (Picoides dorsalis) - 10 files


More Information

BirdLife International

For more information about the American Three-toed Woodpecker see... Show Articles BirdLife International Species Factsheet.


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