. Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting. . ather,and in the Emu and Cassowary it equals it in length. Feathers may be divided into those specially employed as themeans of locomotion and those intended to protect the Bird fromextreme cold. The former are much stronger, more compact, and \J2 REPTILES AND BIRDS. more elongated than the others. The row of feathers bordering thewing behind is known as the alar quills^ or wing quills, and thoseterminating the extremity of the tail, as caudal quills. From theh
. Reptiles and birds. A popular account of the various orders; with a description of the habits and economy of the most interesting. . ather,and in the Emu and Cassowary it equals it in length. Feathers may be divided into those specially employed as themeans of locomotion and those intended to protect the Bird fromextreme cold. The former are much stronger, more compact, and \J2 REPTILES AND BIRDS. more elongated than the others. The row of feathers bordering thewing behind is known as the alar quills^ or wing quills, and thoseterminating the extremity of the tail, as caudal quills. From thehead, backwards to tlie tail, the body feathers increase in strengthand size, also alter in form ; those on the face, or round the base ofthe bill, being smallest (Fig. 53), the tail-coverts longest (Fig. 54).Immediately covering the base of the wing quills are a row of featherson both surfaces of the wing; these are the quill coverts. The most brilliant feathers are found in Birds of warm many species the brilliant plumage is confined to the males, whilethat of the females is dark and sombre. In other cases it is the.
Size: 1251px × 1999px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, booksubjectrep
