. 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. Fig. 7:i. Butclicrljira. LANIID^, SHRIKES. GEN. 54. _ 125 and the j'onng differ but little. There are onlj^ two well determined American species, of nine that compose the genus. j*^ 54. Genus COLLXJRIO Vigors. y? * Great Northern Shrike, or Butcherbird. Clear bluish-ash blanching on the rump and scapulars, below white always veriniculatcd with
. 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. Fig. 7:i. Butclicrljira. LANIID^, SHRIKES. GEN. 54. _ 125 and the j'onng differ but little. There are onlj^ two well determined American species, of nine that compose the genus. j*^ 54. Genus COLLXJRIO Vigors. y? * Great Northern Shrike, or Butcherbird. Clear bluish-ash blanching on the rump and scapulars, below white always veriniculatcd with tine Avavy blackish lines; a black bar along side of head not meeting its fellow across forehead, interrupted by a white crescent on under eyelid, and l)ordered above T)y hoary white that also occu- pies the extreme forehead; wings and tail black, the former with a large spot near base of the prima- ries, and the tips of most of the C|uills, white, the latter with nearly all the feathers broadly tijjped with white, and with concealed white bases; bill and feet black; 9-10 long; wing 4J ; tail rather more. The young is similar, Init none of the colors are so pm'e or so intense ; the entire plumage has a brownish snfi'u- sion, and the bill is tiesh colored at base. North America, northerly; Ijreeds, however, in mountainous parts of the United States (Alleghanies, Ttirnhull) ; in winter, usually extends southward about to .35° {Couen). WiLS., i, 74, pi. 5, f. 1; Nutt., i, 258; Aud., iv, 1-30, pi. 23G ; Bd., 324, and Rev. 440 boreilis. o s' Loggerhead Shrike. Slate-colored, slightly whitish on the rump and ' scapulars, below Avhite, with a few obscure wavy black lines, or none; black bar on side of head meeting its fellow across the forehead, not interrupted by white on under eyelid, and scarcely or not bordered above by hoary white ; otherwise like horealis in color, but smaller ; 8-8J ; wing about 4 ; tail rather more. Young birds differ much as described under horealis, and are
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
