. 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 . ce it comes as one of the early harbingers of spring, or during mild •winterweatlier, bringing its bit of blue sky with cheery, voluble song. Nest in natural or artificialhollows o
. 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 . ce it comes as one of the early harbingers of spring, or during mild •winterweatlier, bringing its bit of blue sky with cheery, voluble song. Nest in natural or artificialhollows of trees, posts, or bird-boxes, loosely constructed of the most miscellaneous materials;<ggs 4-0, pale bluish, occasionally whitish, unmarked, ; two or three broods inone season. S. s. azurea. (New Lat. adj. azureu!^., azure, sky-blue; Middle Lat. noun ozitra, azuruni,lazur, lazurius, lazulus, a blue stone, the Icqns lazuli, Gr. \aCovpiov, Inznurion, from Arabiclazward; Persian lazhward; said to be named from the mines of Lajwunl.) Azure Blue-bird. Similar to S. sialis ; the blue of a greenish .shade; breast paler chestnut; crissumbuffy ; tail about S. Arizona and southward. A slight variety, first described by Baird,Rev. Am. Birds, 1804, p. 62; taken into Key, 3d ed., 1887, p. S66 ; A. O. U. List, No. 766 a(wrongly accredited to SwAlxsox, and the date of Bairds Review misprinted 1884). 17. 258 SYSTEMA TIC SYXOPSTS. — PASSERES—OSCIXES. S. mexicana occidentalis. (Lat. mexicana, of Mexico; occidentalism of the Occident orsetting sun, i. e., Western.) Townsends Western Bluebird. Mexican Bluebird.(J, adult: Eich azure-blue, including head and neck all around; a patch of purplish-chestnuton upper back, more or less completely divided into a pair of patches; breast and sides richchestnut; belly and vent dull blue or bluish-gray. Bill and feet black. Size of the lastspecies. 9, and young: Changes of plumage coincident with those of the Eastern
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
