. The water birds of North America [microform]. Birds; Water-birds; Oiseaux; Oiseaux aquatiques. —THE GULLS AND TERNS — LAllUS. 241 Romaindi'v of tlie pliiiimge pure white. Rill deep chrome-yellow, the iimiulible reil suljleruiiiiiilly, iiwir the angle; eyelids oraiij,'e-red (Sacndkus) ; le^'s iiiid feet yellow (Saundeuh) ; iiis pale yellow. Adult, in vnntcr: Similar, hut head and neck, above and posteriorly, streaked with brownish gray.^ Yminij; "The younj,' have always flesh-colored legs, and cannot possibly, I believe, be distinguished from the young of />. ar(jenhthtn"
. The water birds of North America [microform]. Birds; Water-birds; Oiseaux; Oiseaux aquatiques. —THE GULLS AND TERNS — LAllUS. 241 Romaindi'v of tlie pliiiimge pure white. Rill deep chrome-yellow, the iimiulible reil suljleruiiiiiilly, iiwir the angle; eyelids oraiij,'e-red (Sacndkus) ; le^'s iiiid feet yellow (Saundeuh) ; iiis pale yellow. Adult, in vnntcr: Similar, hut head and neck, above and posteriorly, streaked with brownish gray.^ Yminij; "The younj,' have always flesh-colored legs, and cannot possibly, I believe, be distinguished from the young of />. ar(jenhthtn" (Giqlioli, "Ibis," 1881, p. 21!)). TottiLlength, about 26.(K) inches; wing, If). (average ) ; culmen, () ; depth of bill through angle, . (.72) ; tarsus, () ; middle toe, (). [.Si.\ adults.] This easily recognized species more nearly re-sembles, except in size, L. califomkus than L. arijtntaUis, with which it has generally been compared, the color of the mantle being precisely similar, while the eyelids are red, as in that species, and not yellow, as in anjcntutus. The bill, liowever, is similar in shape, size, and color to that of anjeiitdtus, being destitute of the black .spots always present in The feet iire stated to be yellow (cf. Sauxijehs, P. Z. S., 1878, p. 170), those of califomkus are pea-green, and those of anjcntutus flesh-colored. It would be interesting to know the color of the iris in this species, since its true relationship might thus li(^ more easily determined. L. arycntatus and L. californicus are very different iu this respect, the luinier having pale yellow or silvery-white, the latter dark brown, irides. This species has been only quite recently ascertained by Mr. Ridgway to be the common Gidl of the Northern Pacific coast from San Francisco northward to Alaska. While closely resembling the argentatus, ^Ir. Howard Saunders thinks that it may properly be consi
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
