. 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. LARIB^ — LABINM: GULLS. 747 lull IS, dusky; darkest on the latter; all with light edgings. Primaries uniform brownish-hlack, without white spots, tips, or lighte
. 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. LARIB^ — LABINM: GULLS. 747 lull IS, dusky; darkest on the latter; all with light edgings. Primaries uniform brownish-hlack, without white spots, tips, or lighter bases. Tail almost entirely br(jwuisl-i-black, with a nan-ow border of white. Young in August: Bill and legs as in the preceding. Ev(.Tyw!)pre whitish-gray; the white of the under parts appearing as mottling, and the blue of the upper parts as irregular patches. Dimensions: length ; extent ; wing ; al); gape ; width at nostrils ; height , height at angle ; tar and middle toe with claw, Interior of Arctic America, and Pacific coast generally. X(jt authenticated as oecurriug on the Atlantic coast. The American representative of L. canus. 781. L. heer'manni. (To Dr. A. L. Heermanu. Fig. 509.) White-he.\ded Gull. Very diflerent from any of the foregoing, belonging to a different section of the genus {Blasqms). Bill sliorter than head or tarsus, rather slender, moderately compressed, the tip rather acute; its color red in part in the adult. Folded wings reaching beyond the tail. Tail of moderate length, even, shghtly emarginate in the young. Feet rather large. Tarsus equal to the middle toe and claw, (gen- eral colors dark ; tail mostly blackish. Adult, breeding plumage : Bill bright vermilion red, black for its terminal third, sometimes wholly red ; a red ring around eye. Head white; this color gradually merging on the neck into plumbeous-ash, which extends over the whole under parts, being lighter on the abdomen and under tail-cover
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1887
