. Catalogue of the Birds in the British Museum. 202 the inner web in very old birds), and with the black of the upper part of the inner web clear of the shaft; 3rd quill similar, but with more subterminal black (see cut on p. 201); 4th quill similar, but with grey next the shaft on the inner web and its margin black ; 5th quill grey on both webs, and a subterminal bar which is some- times incomplete ; remaining quills grey; under wing-coverts grey, in strong contrast with the black of the (juills: " bill crimson " (Gibson); tarsi and toes dull red; "iris dark brown, pupil black&
. Catalogue of the Birds in the British Museum. 202 the inner web in very old birds), and with the black of the upper part of the inner web clear of the shaft; 3rd quill similar, but with more subterminal black (see cut on p. 201); 4th quill similar, but with grey next the shaft on the inner web and its margin black ; 5th quill grey on both webs, and a subterminal bar which is some- times incomplete ; remaining quills grey; under wing-coverts grey, in strong contrast with the black of the (juills: " bill crimson " (Gibson); tarsi and toes dull red; "iris dark brown, pupil black" (Gibson). In less mature examples there is more or less of a bar (or only a spot) on the outermost quill, a short streak of black on the outer web of the 2nd quill, and more black on the inner webs generally. Total length 15 inches, culmeu 1"7, wing 12, tail 5, tarsus 2, middle toe with claw 1*65 to 1-7. The female appears to be a trifle smaller. Adult in winter. Devoid of hood, but only for a short time, and without the rosy tint on the underparts: otherwise like the 1 2 3 Larus maculipeimis, juv. Young. Head white, with some greyish brown on the occiput and auriculars ; mantle and wing-coverts grey, mottled with brown; secondaries with ash-brown centres ; the five outer quills chiefly sooty brown terminally and on their inner webs, with indications of incipient mirrors on the two outer quills ; the inner quills with some white basally, and, although with a larger proportion of black, yet generally similar to the pattern in the adult; tail with a sooty terminal band. In rather older birds there are elongated mirrors on the three outer quills (see cut). Bill dull red, blackish. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Department of Zoology. [Birds].
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Keywords: ., 1896, bookcentury1800, bookdecade1890, bookpublisherlondon, bookye
