. 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; 1887. A B C u Fif>. 114. —Skulls of Turdklffi and S'i/h:ico/U?(s, riat. size; after SliufeMt. A, Oro- scop( montanus; B, SiaTM mexicana i C, mt-xlcanus;

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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. Birds; Birds; 1887. A B C u Fif>. 114. —Skulls of Turdklffi and S'i/h:ico/U?(s, riat. size; after SliufeMt. A, Oro- scop( montanus; B, SiaTM mexicana i C, mt-xlcanus; JJ, Siurus ni/:vius. Observe likeness between A and B, at points marked c, c', I, L'; and between C and D, at points marked h, h/ rl, (¥.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coues, Elliott, 1842-1899; Fuertes, Louis Agassiz, 1874-1927. asn; Estes & Lauriat. prt; John Wilson and Son. prt. Boston, Estes and Lauriat

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887