. 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. 758 SY8TEMATIC SYNOPSIS. — LONGIPENNES — GA VIjE. Tibife bare about ; tarsus , rather exceeding middle toe and claw, the scutella iu front replaced by p
. 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. 758 SY8TEMATIC SYNOPSIS. — LONGIPENNES — GA VIjE. Tibife bare about ; tarsus , rather exceeding middle toe and claw, the scutella iu front replaced by polygonal scales similar to but larger than those on its sides, which are rough ; hind toe extremely small; outer lateral nearly as long as middle toe and claw, which is BOl dark vermilion red, growing lighter and somewhat " diaphanous " toward the tip. Pileum and occipital crest glossy greenish-black, extending to below the lower level of the eyes, and occupying the termination of the feathers on the side of the mandible to the. Fig. 512. —Caspian Tern, exclusion of the white; lower eyelid white, , t iiat. size. (From Bit;lim.) forming a noticeable spot on the greenish ; a vilrite streak along sides of upper mandible, not extending to the end of the feathers. Mantle pearl-blue, the hue of demarcation between it and the white rather indefinite, both on nape and rump ; most of the tail-feathers, and especially the central ones, retaining a more or less pearly tint. Shafts of the primaries yellowish-white; primaries grayish-black, but, when neM', so heavily silvered over as to appear of a light hoary gray, especially on their superior aspects. On the inner web of all there is a central light field ; this is very narrow, even on the first primary, although it runs for some considerable distance, and on the others it rapidly grows less; and it has no trenchant line of division on any of the priuraries from the darker portions of the feather. Whole inner web of
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887
