. 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 . Fig. 502. —Knee-joint ot Phalacrocoraxbicristatus, nat. size, from nature by Dr. Sliufeldt. F, femur; P, patella; T, tibia;Fb, abula. 724 SYSTEMATIC SYNOPSIS — STEGANOPODES. s
. 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 . Fig. 502. —Knee-joint ot Phalacrocoraxbicristatus, nat. size, from nature by Dr. Sliufeldt. F, femur; P, patella; T, tibia;Fb, abula. 724 SYSTEMATIC SYNOPSIS — STEGANOPODES. style in the nape, in the position of the Ugamentum nucha; of many animals, and articulated mththe occiput,_ is the most remarkable (fig. 505). It occurs in the Anhinga also, but is there muchsmaller. The desmoguathous structure is seen in its highest development; the palatines beingnot only soldered, but sending down a keel along their line of union; the interorbital septum is #. vei7 defective, with hori-zontal inferior border (ageneral character of theorder except in the Peli-cans). The sternum andshoulder-girdle, and theknee, are shown in figs. 504,502. In the knee-joint,there is a bulky free patella,coexistent with a short cne-inial apophysis or rotularprocess of the tibia, but per-fectly distinct therefrom, asin Podiceps. The musclesof the legs are as in pterylosis agrees essen-tially with the ordinal ptery-lographic characters, but theplumage is peculiar in cer-tain details. Excepting afew speckled species, andsome others that are largely white below,the plumage is glossy or lustrous black, oftenhighly iridescent with green, purple, and violettints, commonly uniform on the head, neck, andunder parts, but on the back and wing-coverts,where the feathers are sharp-edged and distinct,the shade is more apt to be coppery or bronzy, each feather with well-defined darker concerns, however, only the adult plumage, which is the same in both
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
