Identifier: keytonorthameric02coue (find matches)
Title: Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology, an outline of the structure and classification of birds, and Field ornithology, a manual of collecting, preparing, and preserving birds
Year: 1890 (1890s)
Authors: Coues, Elliott, 1842-1899
Subjects: Birds -- North America Birds -- Collection and preservation
Publisher: Boston, D. Estes and Company
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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Ki.i. 171. — Itliiik Hinvk. (From Tlip OHpn-y.) 692 SYSTEMA TIC SYNOPSIS. — RAPTORES - A CCIPITRES. tent crepuscular in habits, of low, easy, and almost noiseless fliglit; preying upon insignifi-cant quarry, particularly small rodent and insectivorous mammals, reptiles, batrachians, andinsects. With us it is only a migrant in spring and fall, and a winter resident, breeding almostentirely north of the U. S. (excepting Alaska); but doubtless nests near our northern border asit does rarely on it, as in North Dakota. Nest usually in trees, but frequently on a ledge of
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V^^^^^^_^ Fio. 472. —Rough-legged Buzzard, J nat. size. (From Brehm.) rocks or the edge of a cut-bank; a bulky mass of interlaced sticks, with softer matted materialof miscellaneous kinds; eggs 2-5, ordinarily 3 or 4, laid late in May and in June, 2.05-2.45X 1.65-1.85, averaging 2.25 X 1.80; varying in color from dingy whitish with scarcely anymarking, or but faint clouding, to creamy-white boldly variegated with blotches and washesof dark brown on the surface, with neutral-tiut markings in the substance of the shell. (Subgenus Brewstekia.) A. ferrugineus. (Lat. ferrngo, iron-rust.) Ferruginous Rough-legged Buzzard. California Squirrel Hawk. Eagle Hawk. Adult $ 9 : Below, pure white frombill to end of tail; legs rich rufous or bright chestnut barred with black, in marked contrast;usually a few chestnut bars or arrow-heads on belly and flanks, and breast with sharp shaftlines of black. The older the bird tlie purer white below, with more perfect contrast of chest- FALCONIDM — BUTEO

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