. 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. Birds; Birds; 1887. FALCONIJD^ â FALCONINJS .- FALCONS. 531 rior size, measuring about X 1-90, soiled whitish, "marked ineguhivly with large hut quite faiut blotclies of d
. 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. Birds; Birds; 1887. FALCONIJD^ â FALCONINJS .- FALCONS. 531 rior size, measuring about X 1-90, soiled whitish, "marked ineguhivly with large hut quite faiut blotclies of drab and ; 497. A. a. stria'tulus ? (Lat. striatulus, finely striped.) Western Go,siia-\vk. Described as having the markings of the under parts so fine and dense as to present a nearly uniform l)luisli- ashy nehulation, pencilled with fine black-shafted lines. Kocky Mts. to the Pacific. (Piobably untenable.) 45. Subfamily FALCONINi'E: Falcons. --__ â Bill furnished witli a sharp tooth and notch near the end of the cutting edge of the ujjper maudiljle (sometimes two such teeth), and end of under mandible truncated, mth notch near the tip (figs. 373, 374). Nostrils circular, high in the cere, with a prominent central tubercle (tig. 372). Inter-nasal septum extensively ossified. Palate with a median keel ante- riorly. Superciliary shield prominent, in one large piece. Shoulder-joint strengthened by union of scapular process of the coracoid with the clavicle (fig. 362) as in Micrastur, Her- petotheres, and the Polyborince alone of FrilcoiiirliT. Wings strong, long, and pointed, with rigid and usually straiglit and tapering flight-feathers; the tip forujed by the 2d and 3d quills, supported nearly to their ends by the 1st and 4th, both of which are longer than the 5th; only one or two outer primaries emarginatc on inner webs near the end. Tail short and stifl', with more or less tapering rectrices. Feet strong, rather short, the tarsus of less length than the t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887
