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Biology 250
Description
A medium-sized black-and-white woodpecker, more black than white. Head black with a white mustache stripe and a thin white line behind eye. Throat, breast, and belly white.
Behavior
Forages mostly on trunks, not branches or fallen logs. Strips bark from trees.
Habitat
Boreal and montane coniferous forests, especially mature forests with abundance of insect-infested snags or dying trees, and spruce forests.Live in forests disturbed by disease, fire, or other disasters.
Picoides dorsalis
Two-toed Woodpecker

Most woodpeckers have four toes on each foot. The two-toed woodpecker only has two. The loss of the fourth and third toe may help deliver stronger blows, but at the expense of climbing ability.

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