. 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. TUBDIDM—MIMINM: MOCKING 251 ions which now ohtain in ornithology to place all the species in one genus; but the gradation of form is so gentle that it seems
. 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. TUBDIDM—MIMINM: MOCKING 251 ions which now ohtain in ornithology to place all the species in one genus; but the gradation of form is so gentle that it seems impossible to dismember the group without violence. The arcuation of the bill proceeds pouri passu with its elongation; the shortest bills being the straightest, and conversely. There is also a curious correlation of color with shape of bill; the short-billed species being the most richly colored and heavily spotted, while the bow- bDled ones are very plain, sometimes with no spots whatever on the under parts. Our nine forms of the genus are with one exception South-western, focusing in Arizona, where occur four species, two of them not known elsewhere; two others are confined to Cahfornia; two to the Mexican border, leaving only one generally distributed. They furnish the following AmUysis of Species and Varieties. Bill not longer than head (), little or not curved. Breast spotted. Bill , quite straight. Above rich rusty-red ; below whitish, heavily spotted and streaked with dark brown. Eastern rufus 17 Bill , slightly curved. Above dark reddish-brown, below whitish, heavily spotted and streaked with blackish. Texas .... .... longvrostris 18 Bill , curved. Above ashy-gray, below whitish, breast with round spots of the color of the back. Mexican border and Arizona curvirostris or palmeri 19,20 Bill , scarcely curved. Above grayish-brown, below brownish-white, breast alone with arrow- heads of the color of the back. Arizona bendirii 12 Bill , curv
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1894
