. 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 . imaries . . excubitorides 188Darker: little white on rump and scapulars; short white patch on primaries . . ludovicianus 187 186. L. borealis. (Lat. borealis, nortliern. Figs. 203,
. 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 . imaries . . excubitorides 188Darker: little white on rump and scapulars; short white patch on primaries . . ludovicianus 187 186. L. borealis. (Lat. borealis, nortliern. Figs. 203, 204.) Great Northern ^ 9> adult: Above, clear bluish-ash, blanching on rump and scapulars;below, white, always vermiculated trans-versely with fine wavy blackish lines; abroad black bar along side of head, notmeeting its fellow across forehead, inter- ^ rupted by a white crescent on under eyelid,and bordered above by hoary white that ^also occupies the extreme forehead ; wings *: and tail black, the former with a largewhite spot near base of the primaries,and white tips of most of the quills, thelatter with the outer web of the outer feather edged, and all the feathers except- Fio. 204. —Butcher-bird (L. borealis), nat. size, ing the middle pair broadly tipped, with ■•*• ^- ^ ^•^white, and with concealed white bases; bill and feet bluish-black ; eyes blackish. Length 22. 338 SYSTEM A TIC SYNOPSIS. — PA SSERES — OSCINES. ; extent ; wing ; tail rather more ; bill ; tarsus ;middle toe aud claw Youug: Tlie colors much less pure and clear. Above, grayish-brown, scarcely or not whitening on the scapulars, tail-coverts, and forehead. The youngerthe browner, sometimes almost with a rusty tinge; grayer according to age. Below brownisli-white (the younger the browner), the wavy dark markings stronger than in the adult. Thebar along the head poorly defined, merely dusky, or ([uite obsolete. Wings and t
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
