. 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. TETRAONID^ — TETBAONIN^: GBOUSE. 587 secreting part of the passage is as if covered with fresh paint, soft and sticky, which may be rubbed off before it " sets''
. 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. TETRAONID^ — TETBAONIN^: GBOUSE. 587 secreting part of the passage is as if covered with fresh paint, soft and sticky, which may be rubbed off before it " sets'' on the shell. Size X 1-30. 569. li. rupes'tris. (Lat. rupestris, relating to rupis, a rock; rupestrine.) KoCK Ptarmisan. Bill slenderer for its length than that of L. albus, its depth at base less than the distance from nasal fossa to tip; whole oulmen ; bill always black. ,J 9, in winter: As in L. albus, but a black transocular stripe on side of head. (J 9 , in summer: The whole plumage, excepting tte wings and tail, barred with blackish-brown and brownish-yellow. Rather smaller than the. Fia. 404. —Willow Ftaimigan, winter plumage, J nat. size. (From Brelim.) foregoing. Length ; wing ; tail Arctic America, not S. to the U. S. Eggs 13-15 or more, like those of L. albus, but darker and rather smaller; size X 1-18. "The summer plumage is assumed at variable periods of the months of April, May, and even in early June, according to the locality. The moult for the summer is usually shown first on the head and neck, followed by the lower back, sides, breast, middle back, flanks, and abdomen, in the order named. The abdomen and chin are the last areas to show the com- plete moult. The parts named also assume, in the order given, the white winter plumage. During the time of the summer plumage scarcely a single day passes that the general color of the feathers is not modified by the appearance or loss of some ; (Tu/rner.} He
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1894
