. A history of North American birds [microform] : land birds. Birds -- North America; Ornithology -- North America; Oiseaux -- Amérique du Nord; Ornithologie -- Amérique du Nord. Pffrtrophaii's jiiralis. the outlines of the bill nearly , or slightly curve*!; the lower jaw considerably broader at the base than the upjier, and wider than the gonys is long. Tarsi considerably longer than tlie middle toe; the late-al toes n«\irh' eciual (the inner claw largest) and reaching to the base of the middle claw. Tiie hinder claw very long, moderately curved and acute. ct»nsideral)ly longer than
. A history of North American birds [microform] : land birds. Birds -- North America; Ornithology -- North America; Oiseaux -- Amérique du Nord; Ornithologie -- Amérique du Nord. Pffrtrophaii's jiiralis. the outlines of the bill nearly , or slightly curve*!; the lower jaw considerably broader at the base than the upjier, and wider than the gonys is long. Tarsi considerably longer than tlie middle toe; the late-al toes n«\irh' eciual (the inner claw largest) and reaching to the base of the middle claw. Tiie hinder claw very long, moderately curved and acute. ct»nsideral)ly longer than it^ toe; the toe and claw together reaching to the middle of the middle claw, or beyond its tip. Wings very long and much [>ointed, reaching nearly to tlie end of the tail; the first quill longest; the others rapidly graduated; the tertiaries a little longer than the secondaries. Tail moderate, about two thirds as long as the wings: nearly even, or slightly emaririnated. Tlie species of this genus are essentially lK)real and cosmopolitan, although America possesses four species r^:tvj9^./ not found, like lier two others, in the Old World. Tliey are all ground-birds, collecting in large flocks, in autumn and winter, on imiiries and plains, some of the species passing far to the southward. There is much variation in the color, and in the details of structure of bill and feet. In P. nivalis PUrtrophnnfs nivalis . • ,i n • n ^ • ,^ alone is the tringe oi bristly feathers along the side of the bill very distinct. The gonys also is excep- tionally short, being less than half the length of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Baird, Spencer F. , 1823-1887; Brewer, T. M. (Thomas Mayo), 1814-1880; Ridgway, Robert, 1850-1929. Boston : Little, Brown
Size: 1896px × 1318px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectbirdsnorthamerica
