. 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 . —: FALCONS. 6G5. Fig. 457. — A(From Michelet.) noble Falcon. the 3d, the 1st ratlier shorter than 3d, and alone decidedly einarginate on inner web. Adult^ 9- Wh
. 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 . —: FALCONS. 6G5. Fig. 457. — A(From Michelet.) noble Falcon. the 3d, the 1st ratlier shorter than 3d, and alone decidedly einarginate on inner web. Adult^ 9- White — wiiite as a Snowy Owl. Head and all under parts iininacuLite white, or with only a few dark touches on the top and sides of the head, —- and on the tianks and flags. Back, wings, and tail white,more or less profusely marked with dusky (slaty-black) bars,crescents, arrow-heads, or transverse spots; amount of thesedark markings about as in an average Snowy Owl. Billbluisli, darker at tip ; cere, edges of eyelids, and feet chrome-yellow ; claws blue-black ; iris brown. Bill and claws finallygrowing whitish. Length of ^ about ; wing ; tail ; bill ; tarsus ; middle toe with-out claw 9: Length about ; wing ;tail Young: Not very diflereut from tlie adults;prevailing color still white, but more heavily marked withdark brown, tending to lengthwise spots on both upper andunder parts.
Size: 1160px × 2153px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
