First lesson in zoology : adapted for use in schools . Via. 209.—Feather, sh, shaft;V, vanes; A, barbule, with (6c;the barbicels. 202 FIB8T LESSONS IN ZOOLOGY. The differences between the feathers, especially of thewings and back, aid us in discriminating the different kindsof birds. The student should have a dead or stuffed birdbefore him, and, with the aid of Fig. 210, learn the namesof the different kinds of feathers, as well as the other terms. Fig. 210.—Topography of the Dove. Al, alula; B, belly: Bk, hack; Br, breast; Ocrown; E, ear; F, forehead; i, lore; fie, greater coverts; Lc, lesser
First lesson in zoology : adapted for use in schools . Via. 209.—Feather, sh, shaft;V, vanes; A, barbule, with (6c;the barbicels. 202 FIB8T LESSONS IN ZOOLOGY. The differences between the feathers, especially of thewings and back, aid us in discriminating the different kindsof birds. The student should have a dead or stuffed birdbefore him, and, with the aid of Fig. 210, learn the namesof the different kinds of feathers, as well as the other terms. Fig. 210.—Topography of the Dove. Al, alula; B, belly: Bk, hack; Br, breast; Ocrown; E, ear; F, forehead; i, lore; fie, greater coverts; Lc, lesser coverts;MCj middle coverts; JV, nape; 0, occiput; P, primaries; S, secondaries; R,rump; ir, scuteUate and reticulate tarsus; 3, tail; Tu, tertiaries; Tc, tail cov-erts; Th, throat. used in descriptive ornithology. Of the wing-feathers, theprimaries (or primary remiges) are attached along the loweredge of the wing from the tip to the carpal joint; the sec-ondaries extend from the carpal joint to the are usually ten primaries, and a ^eater number ofsecondaries (from six to forty). All the remiges are covered THE BIBBS. 203 at their base by smaller feathers called coverts, the threegrowing on the upper arm or humerus being, called ter-tiaries. The large tail- or quill-feathers are called rectrices, be-cause they act together as a rudder in flight. There areusually twelve of them which are attached to the last tail-vertebra
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1894
