. 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. 236 TETKAONIDjE, GKOUSE, PAETEIDGES. GEN. 184. America. Sw. and Rich., Fn. ii, 354, pi. 64; Nutt., i, 610; AuD., V, 122, pi. 301; Bd., 635. 9L. amerlcanus Aud. bused on L. mutus Sw. and Eich., Fn. ii, 350. l\i V, 119, pi. 300; EUPESTEIS. Wldte-tailed Ptarmigmi. Tail white at all seasons; in winter, no black anywhere; in summe
. 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. 236 TETKAONIDjE, GKOUSE, PAETEIDGES. GEN. 184. America. Sw. and Rich., Fn. ii, 354, pi. 64; Nutt., i, 610; AuD., V, 122, pi. 301; Bd., 635. 9L. amerlcanus Aud. bused on L. mutus Sw. and Eich., Fn. ii, 350. l\i V, 119, pi. 300; EUPESTEIS. Wldte-tailed Ptarmigmi. Tail white at all seasons; in winter, no black anywhere; in summer, barred with dark brown and ochrey; bill slender, and other proportions nearly as in the last. A species of alpine distribution in western North America, from the Arctic regions to New Mexico (hit. 37°). Sw. and Rich., Fn. ii, 356, pi. 63; Nutt., i, 612;. Abd., v, 125, pi. 302; Bd.,636; Coop., 542 leucueus. ^vf' Subfamily OBONTOPHOUINJE. American Partridges. Head completely feathered, and usually crested, the crest frequently assuming a remarkable shape. Nasal fossffi not filled with feathers, the nostrils covered with a naked scale. Tarsi and toes naked, the latter scarcely or not fringed. Our partridges may be distinguished, among American Gallince, by the foregoing characters, but not from those of the Old World; and it is highly improbable that, as a group, they arc separable from all the forms of the latter by any decided peculiarities. I find that the principal supposed character, namely, a toothing of the under mandible, is very faintly indicated in some forms, and entirely want- ing in others. Pending final issue, however, it is expedient to recog- nize the group, so strictlj'' limited geographicallj', if not otherwise. Several beautiful and important genera occur witliiu our limits, but these partridges are most numerous in species in Central aud South America. Odontoplwrus is the leading genus, with perhaps 15 species ; Eupsydwrtyx and Dendrortyx are other
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
