. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . — bill about equal in length to head, ex-tremely slender, sharp, and decurved; nostrils exposed; no rictal bristles ; tarsus scutellate,shorter than 3d toe and claw, which is conna
. Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and Lower California, with which are incorporated General ornithology: an outline of the structure and classification of birds; and Field ornithology, a manual of collecting, preparing, and preserving birds . — bill about equal in length to head, ex-tremely slender, sharp, and decurved; nostrils exposed; no rictal bristles ; tarsus scutellate,shorter than 3d toe and claw, which is connate for the whole of the 1st joint with both 2d and4th toe; lateral toes of unequal lengths, 1st toe shorter than its claw; claws all much curvedand very sharp; wing 10-primaried, the 1st primary very short, not one-half the 2d, which isless than the 3d; point of AAing fm-med by 3d, 4th, and 5tli quills; tail rounded, equal to orlonger than Aving, of 12 stout, elastic, curved, acuminate feathers. Restless, active, little forestbirds that make a living by picking bugs out of cracks in bark. In scrambling about they usethe tail as woodpeckers do, and never hang head downwards, like the nuthatches. Lay numer-ous white, speckled eggs in knotholes; are not regularly migratory; have slight seasonal orsexual changes of plumage ; are chiefly insectivorous, and not noted for musical ability. TROGLODYTID^: WRENS. 273. Fig. 146. — Head, foot, ami tail-feather of Cer- CERTHIA. (Lat. certhius, a creeper. Fig. Ii6.) Characters as above. The stock-formof this genus varies according to locality. European varieties sometimes recognized are C. costceand C. hritannica. The N. Am. bird, which is in-separable from the European, has been called , fusca, and americana, for Eastern specimens,C. Montana for those from the Rocky Mt. region,and C. occidentalis f(jr those from the Pacific cc)astregion. The Mexican form, C. mexicana, dilfersmore appreciably, as below familiaris. (Lat. fam
Size: 2139px × 1168px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbirds, bookyear1896
