. 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 . odida:), lobation is present as a modificationof a foot otherwise quite cursorial. Tlie most emphatic cases of loba-tion are those in which each joint of the toes has its own flap,
. 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 . odida:), lobation is present as a modificationof a foot otherwise quite cursorial. Tlie most emphatic cases of loba-tion are those in which each joint of the toes has its own flap, with a p ^^j — inoiscl nal-free convex border ; the membranes as a whole therefore present a scol- mation of Hydrorheiulonloped outline (figs. 53, 53 his). Such lobes are merely a development «/-«•• »* «*^e-of certain marginal fringes or ]irocoss(s exhibited by many nmi-lobate or non-palmate , if tlic foot of some of the gallinules be examined in a fresh state, the toes will be seen to.
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
