While the three-toed woodpecker is not regularly migratory, it appears likely that during severe winters it withdraws somewhat from the northern parts of its range. At this season it is occasionally collected or observed short distances south of its normal range (Massachusetts, southern Wisconsin, southern Minnesota, and southern New Mexico). _Egg dates._--Alberta: 8 records, May 23 to June 16. Arctic America: 5 records, May 15 to June 9. Labrador: 3 records, May 26 and 27. New York: 3 records, May 14 to June 8. PICOÏDES TRIDACTYLUS FASCIATUS Baird ALASKA THREE-TOED WOODPECKER HABITS The range of this race of the three-toed woodpecker extends throughout the Hudsonian and Canadian Zones of western Canada and Alaska, and a short distance southward into some of the Western States, where it intergrades with the next form in the boreal forests of the Rocky Mountains. Ridgway (1914) describes it as similar to the eastern race, “but with much more white on back, the white bars much larger and more or less coalesced along median line, forming a more or less continuous longitudinal patch; whitish spots on forehead much larger, sometimes coalesced into a nearly uniform dull white frontal area; upper tail-coverts and lower rump barred or spotted with white; sometimes even the wing-coverts and middle rectrices are spotted with white; black malar stripe narrower and usually less distinct, and black bars on sides and flanks narrower; averaging slightly larger.” Dr. E. W. Nelson (1887) says that this woodpecker occurs “on the headwaters of the Mackenzie River, extending thence north along the course of this stream and the Anderson River, and westward, covering all the wooded portions of Northern Alaska to the northern tree-limit, * * * outnumbering by far the combined numbers of all the other woodpeckers of that region. * * * On the Yukon these birds are said to prefer the groves of poplar and willow to the spruces.” Dr. Joseph Grinnell (1900) says: “This, the only species of woodpecker detected by me in the Kowak region, was resident throughout the year. It could scarcely be called common, though its borings were noticed in nearly every tract of spruces visited.” J. A. Munro (1919), referring to the Okanagan Valley, British Columbia, says: “This species is resident and fairly common in Murray pine, Western larch, and spruce forests. I have never found them in yellow pine or Douglas fir country. They prefer the burnt areas of timber, and specimens collected are generally stained with charcoal on the underparts.”