. The water birds of North America [microform]. Birds; Water-birds; Oiseaux; Oiseaux aquatiques. —THE (iULLS AND TERNS — LARUS. 245 X ''^l V. Larger form (= liruchi, Bp?.) Hab. The whole of North America ; south (in winter) to Mexico and Cuba, Sp. Chaii. Sii lli;r thai L. califoniicus, the bill more slender, and without red spot, the mantle much paler, tlie iris yellow, and i'eet greenish yellow in the udult. Adult, in nuvimcr ; Mantle pale IKiul-blue (much as in L. argentatus, much paler thun in L. brachyrhyuchm or L. cunus), the sec- ciiidiiries and tertials passing terminally into i
. The water birds of North America [microform]. Birds; Water-birds; Oiseaux; Oiseaux aquatiques. —THE (iULLS AND TERNS — LARUS. 245 X ''^l V. Larger form (= liruchi, Bp?.) Hab. The whole of North America ; south (in winter) to Mexico and Cuba, Sp. Chaii. Sii lli;r thai L. califoniicus, the bill more slender, and without red spot, the mantle much paler, tlie iris yellow, and i'eet greenish yellow in the udult. Adult, in nuvimcr ; Mantle pale IKiul-blue (much as in L. argentatus, much paler thun in L. brachyrhyuchm or L. cunus), the sec- ciiidiiries and tertials passing terminally into inue white. Outer primary black, with a _ uhite space to inches long near -'_'-*^^.^-j;',,.^ the end, involving both webs, the shaft, how- ever, black ; second ipiill similar, but with tlie white space snuiller, and the extreme li|) also white ; third, with tlie basal half pale peail-gray, and the apical white spot larijer ; next, similar, but the subterminal liliick more restricted, the line of deniar- ciilion between it and the i)ale pearl-gray still more sharply defmeil ; fifth, pale pearl- j^iiiy, passing terminally into white, but crossed near the end by a wide band of black, about .75 of an inch wide ; sixth (luill pale pearl-gray, passing into white termi- nally, and marked near the end by a more or less imperfect black spot; remaining (luills pale pearl-blue, passhig terminally into white, and witliout a trace of black. Bill greenish yellow, crossed near the end by a blackisli band, the tip sometimes tinged with orange ; rictus and eyelids verniilion-red ; interior of mouth rich orange- red, more intense posteriorly ; iris clear pale yellow; feet pale yellow, sometimes tinged with green- ish ; claws black.' Adult, in lointer: Similar, but the head and neck, except beneath, streaked with brownish gray. Youmj, first plumage: Above, brownish duskv, the feathers bordered with pale grayish buff; primaries blackish dusky, the inner quills bluish gray basally, a
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
