. 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 . most immature specimens, are still paler below, all the feathers of the under partsbeing skirted with whitish. The quiUs of the wing are also tipped vidth white. The bill isyellovi
. 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 . most immature specimens, are still paler below, all the feathers of the under partsbeing skirted with whitish. The quiUs of the wing are also tipped vidth white. The bill isyellovidsh at the-base. Young: Below, whitish, more or less so according to age, frequentlytinged with pale cinnamon-brown ; whole under parts sometimes overlaid with the whitish endsof the feathers, shaded with rufous posteriorly; throat usually nearly white ; bill mostly yellow;white tipping of the wing-feathers at a maximum; in some cases the tail-feathers similarlymarked. Mountains of Western N. A., from Alaska to Mexico; a sprightly and engaging resi-dent of clear mountain streams, usually observed flitting among the rocks; has a fine a pretty ball of green moss lined with , with a hole at the side, hidden in the riftof a rock, or other nook close to the water: eggs about 5, X , pure white, unmarked. 256 SYSTEMATIC SYNOPSIS.—PASS1E ;. Wheat-ear. (From Dixon.) and Chiefly Old World; repre-sented in North America by-two European species and thpfamiliar Blue-birds; authorassign diflFerent limits to thv,group, and frequently trans-pose the genera. As usuallyconstituted, it contains up-wards of 100 species, com-monly referred to about 12genera. Like many othegroups of Passeres, it hanever been defined with pre-cision, being known conven-tionally by the birds orni-thologists put in it. Thefollowing birds have bootedtarsi; oval nostrils; bristledrictus; rather short, square oremarginate tail; long, pointedwings, with very short spuri-
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
