. Chiave per gli uccelli del Nord America. Contenente un resoconto conciso di ogni specie di uccelli viventi e fossili attualmente nota dal continente a nord del confine tra Messico e Stati Uniti, compresa la Groenlandia e la bassa California, con cui sono incorporate ornitologia generale: Un profilo della struttura e classificazione degli uccelli; e ornitologia di campo, un manuale di raccolta, preparazione e conservazione degli uccelli . .) Blu, Crows. Disegno di forma peculiare, con culmen quasi diritto montato sulla fronte, così alcuni-che come in SiurneUa, betweenthe prominente e somwhatantrorse antise, che, come

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. 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 . .) Blue, Crows. Bill of peculiar shape, with nearly straight culmen mounting on forehead, thus some-what as in SiurneUa, betweenthe prominent and somewhatantrorse antise, which, how-over, do not hide the nostrils;slender, tapering, acute, notnotched; gonys straightish, scarcely ascending. Nostrilssmall, oval, entirely exposed.Tail nearly square, muchshorter than wings. Wingslong, pointed, folding nearlyto end of tail; 4th primarylongest, 3d and 5th scarcely Fig. 271. —Blue Crow, nat. size; ouIiulu too convex. (Ad iiat. del. E.C.)shorter; 2d shorter, 1st shorter still. Feet stout, indicating somewhat terrestrial habits; tar-sus longer than middle toe without claw, the envelope subdivided behind towards the bottom.Claws all large, strong, and much curved. Color bluish, nearly uniform: sexes alike. Onespecies. G. cyanocephala. (Gr. xiavos, huanos^ blue ; KK^aKrj, Itephale, head. Fig. 271.) BlueCkow. $ : Dull blue, very variable in intensity, nearly uniform, but brightest on head, fading-. COB VIBJE — GARB ULIN^: J A YS. 419 on belly; the throat with whitish streaks; wings dusky on the inner webs. Bill and feetblack. Iris brown. Length 11.00-12.00; extent. 16.50-19.00; wing 5.50-6.00; tail about4.50 ; bill 1.33, but from 1.25-1.50; 9 smaller, duller. Kocky Mt. region ; much the sameelevated distribution as the last, but apparently rather more southerly ; decidedly gregarious, and very abundant in some places. A remarkable bird, combining the form of a crow withthe color and habits of a jay, and a peculiarly shaped bill. It roves about in noisy restlessflock

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectbirds
• bookyear1896