. 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. Birds; Birds; 1887. 458 SYSTEMATIC SYNOPSIS —PIGABI^— CYPSELIF0BME8. 406. C. vaux'i. (To Wm. S. Vaux, of PMladelphia.) Vaux's Swift. Similar; paler, the rump and upper tail-coverts
. 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. Birds; Birds; 1887. 458 SYSTEMATIC SYNOPSIS —PIGABI^— CYPSELIF0BME8. 406. C. vaux'i. (To Wm. S. Vaux, of PMladelphia.) Vaux's Swift. Similar; paler, the rump and upper tail-coverts lighter than the rest of the upper parts; the throat whitish. Smaller; length ; wing the same; taU Pacific Coast, U. S., and southward. Seems to be different from xielasgica, hut perhaps the same as a S. Am. species. Nesting and eggs as in the common species. 23. Family TROCHILID^: Humming-birds. >: Fig. 298.— Humming-birds. (From Mlclielet.) Tennirostral Picarice. These beau- tiful little creatures will be known on sight; and as the limits of this work preclude any adequate presentation of the subject, I prefer merely to touch upon it. The Trochilidce, in all essential struc- tural characters, are nearest related to the Cypselidce. These two groups have in fact been united by some in a super- fauiily Macrochires, in allusion to the length of the hand and its feathers, and tersely described as schizognathous In- sessores. The flying-apparatus is as in the swifts: a very deep-keeled sternum, for attachment of powerful pectoral mus- cles, a very short upperarm, but the distal segments of the fore limb length- ened, bearing a thiu-bladed or even falcate wing; primaries 10, the 1st usually longest; secondaries reduced to 6, and very short. Tail of 10 rectrices, but otherwise too variable to be characterized, presenting almost every peculiarity in size and shape as a whole, in size and shape of individual feathers, and often differing in form as well as color
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887
