. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . Fig. 31. Finch. Fig. 32. Black Martin, Fig. 30. Tail ofDvvc and of all intermediate gradations ; even, Fig. 30; rounded,graduated, or wedge-shaped, Fig. 33, at the end ; tapering,pointed, emarginate. Fig. 31 ; or forked,Fig. 32. The number of its quills variesfrom eight to twenty or more, although inby far the greater proportion of birds it ist
. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . Fig. 31. Finch. Fig. 32. Black Martin, Fig. 30. Tail ofDvvc and of all intermediate gradations ; even, Fig. 30; rounded,graduated, or wedge-shaped, Fig. 33, at the end ; tapering,pointed, emarginate. Fig. 31 ; or forked,Fig. 32. The number of its quills variesfrom eight to twenty or more, although inby far the greater proportion of birds it istwelve. The tints or varieties of colour presentedby the plumage are almost endless, andgreatly excel in beauty those of any otherclass of animals, although our native birdsare more distinguished for elegance of form,than for gaudiness of attire. The development of the feathers takesplace by means of an elongated cylindricalmatrix consisting of a capsule, a bulb,and intermediate membranes, by w^hichthe matter secreted by the bulb is 33. Tail of Parrot. Like the foliage of trces, the plumageof birds is shed and renewed annually. In many cases thechange takes place twice every year. The feathers being en-tirely extravascular, or, when
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Keywords: ., bo, bookcentury1800, bookdecade1830, booksubjectbirdsgreatbritain
