Tridge
To be distinguished from the preceding by the prevailing color of the upper parts, which are gray instead of rufous, and the more distinctly barred under parts, the bars on the breast and belly being nearly as well defined as those on the side; the tail is generally gray. Range.-Nova Scotia, northern half of Maine, northern Vermont, New Hampshire, and New York northward and westward to Hudson Bay and Oregon. 301. Lagopus lagopus (Linn.). WILLOW PTARMIGAN. Ad. & in summer.-Prevailing color above rufous, or black thickly barred or mottled with rufous and buffy or whitish; tail fuscous, tipped with white; middle tail-feathers like the back; throat, breast, and sides like the head and neck; belly white. Ad. & in summer.-Similar to the male, but the bars both above and below broader and more numerous. Winter plumage. - Outer tail-feathers as in summer, rest of the plumage white. L., 15.00; W., 7.50; T., 4:40; B. from N., 42; depth of B. at N., 44.