Wendell Taber had a good chance to observe one of these woodpeckers at short range in Grafton County, N. H., on May 31, 1937, about which he writes to me: “The bird was intent upon obtaining its food and ignored our presence. Most of the time the bird would fly to a tree and alight at a height of 20 to 25 feet, then work downward, hopping backward. Particularly it seemed to enjoy prodding around on the base of a tree at or within an inch or two of where tree and earth met. Drilling was barely audible, even when the bird was close-to. Both live and dead trees were attacked impartially. There was no strip act--the bark was not peeled off. There was a row of dead trees at the edge of the forest, which might well have been concentrated on, but which, actually, was attacked only in a haphazard manner along with trees alive in the forest. If anything, more attention was given to live trees.” _Voice._--The three-toed woodpecker is normally a rather silent bird. Its weak notes have been likened to the squealing notes of the yellow-bellied sapsucker, or the squeak of a small mammal; it also utters a variety of short notes like _queep_ or _quip_. Horace W. Wright (1911) says: “The calls of the _americanus_ male bird were not excited or loud. The single calls were somewhat like the robin’s call at dusk, and the rattling calls resembled a Hairy Woodpecker’s rattle, but were less loud and sharp.” Mr. Brewster (1898) writes: I had abundant opportunities for studying the drumming call today. It varied in duration from one to two seconds (never running over or under these limits) but was usually one and a half to one and three quarters seconds. The intervals between the calls were too irregular to be worth recording. The first three or four taps were slightly slower and more disconnected than the remaining ones but the general effect was that of a uniform roll similar to that made by the Downy and the Hairy Woodpecker, but less loud and penetrating. Still it carried well and under favorable conditions could be heard fully one quarter of a mile away. * * * After drumming a dozen times or more he gave a long vocal call closely similar to the Kingfisher-like rattle of the Hairy Woodpecker. _Field marks._--The American three-toed woodpecker is the only woodpecker likely to be seen in the northern woods that has a black back transversely barred with white, white under parts banded with black on the flanks, and a black crown, with or without a yellow crown patch; the yellow patch is very prominent in the adult male and less so in the young birds of both sexes, but lacking in the adult female. In flight the “ladderback” is more conspicuous than when the bird is at rest, and the tail flashes white.