. 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 . r most birds have asmall ossicle, and a few-have two such bony nod-ules, not shown in thefigure, but nearly in theposition of the letter B:the knee-pan or knee-cap, patella (Lat. p
. 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 . r most birds have asmall ossicle, and a few-have two such bony nod-ules, not shown in thefigure, but nearly in theposition of the letter B:the knee-pan or knee-cap, patella (Lat. patel-la). The thigh is thefirst segmentoit\vQ limb;the next segment is theleg proper, or crus (, the shin; adjective,crural), B to C in thefigure, or from knee toheel. This segment isoccupied by two bones,the tibia (Lat. tibia, atube, trumpet), tb, andfibula (Lat. fibula,splint, clasp), the tibia is theprincipal, larger, inner■ bone, running quite to the heel; the fibula is smaller, and (with rare exceptions, as in some ofthe penguins) only runs part way down the outside of the tibia as a slender pointed spike, closepressed against or even partly fused vnlh. the shaft of the tibia. Above, at the knee, bothbones articulate with the femur; the tibia with both the femoral condyles, the fibula only withthe outer condyle. Above, the tibia has an irregularly expanded head or cnemial process ( Fig. 34. — Bones of a birds hind limb: from a duck, Clangula islandica, J ; Dr. K. W. Sbufeldt, A, bip: B, knee: C, beei or ankle-joint; D,bases of toes. A to B, thigh or second joint ; .B to C, cms, leg proper, drum-stick, often wrongly called thigh ; C to JJ, metatarsus, foot projier, correspond-ing to our instep, or foot from ankle to bases of toes; in descriptive ornithologythe tarsus; often called shank. From D outward are the toes or digits, ; tb, tibia, principal (inner) bone of leg; fi, fibula, lesser (outer) bone ofleg; mt, principal meta
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
