. A manual of zoology. Zoology. Fio^ 632. Fig. 633. Fig. 632.âFeather tracts and apteria of pigeon, dorsal view. (From Ludwig-Leunis.) Fig. 633. âRegions and feathers of Falcd hDurrins. (From Sclimarda.) ^, secondaries : Ua, belly : Br, breast; Bz, rump ; D'-D"\ wing coverts ; D(, gonys of bill: EF, alula ; F, culmen of bill; H, occiput; T-LS, primaries; iC, throat ; i. legs ; i\', neck; Sch, crown; Si^, paraptcrium; 5f, forehead, lower tail coverts; Sz^ rectrices ; TI', cheek; WH, cere with nostril; Zh, toes. Besides these covering feathers (coverts, or tectrices, fig. 633, D) there a
. A manual of zoology. Zoology. Fio^ 632. Fig. 633. Fig. 632.âFeather tracts and apteria of pigeon, dorsal view. (From Ludwig-Leunis.) Fig. 633. âRegions and feathers of Falcd hDurrins. (From Sclimarda.) ^, secondaries : Ua, belly : Br, breast; Bz, rump ; D'-D"\ wing coverts ; D(, gonys of bill: EF, alula ; F, culmen of bill; H, occiput; T-LS, primaries; iC, throat ; i. legs ; i\', neck; Sch, crown; Si^, paraptcrium; 5f, forehead, lower tail coverts; Sz^ rectrices ; TI', cheek; WH, cere with nostril; Zh, toes. Besides these covering feathers (coverts, or tectrices, fig. 633, D) there are the longer feathers of the wing, the remiges, and the tail feathers, or rectrices {Sz). The larger remiges form the chief part of the wing; they spring from the part of the limb corresponding to the hand (carpus, metacarpus, phalanges) and are known as primaries (HS). while the secondaries (.), arising from the forearm, are shorter. These are over- lapped at the base by the coverts (B, D', D') and by the parapterium {SF). Fig. 634.âWing skeleton of stork. (From Gegenbaur.) c, i'. carpalia of first rnw: lu humerus ; /)}, fused metacarpals and carpals of secontl row ; p-]''\ phalanges of first three fingers ; ?â , radius ; â )(, ulna. springing from the shoulder. A few feathers arising from the first finger remain distinct from the remiges and form the alula {EF). In the water birds especially the feathers are oiled by the secretion of a pair of glands at the base of the tail above the coccyx. Since the fcathers are not only for protection, but give to most birds the jiower of prolonged flight, they i^redicate a special mode. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
