. Birds of the Colorado valley ... scientific and popular information concerning North American ornithology;. Birds. 10 DESCRIPTION OF TURDUS MIGRATORIUS 2 in summer: Similar to the $, but the colors duller ; upper parts rather olivaceous-gray; chestnut of the under parts paler, the feathers skirted with gray or white; head and tail less blackish; throat with more white. Bill much clouded with dusky. â ,? 5 in winter and young: Similar to the adult female, but receding some- what farther from the $ in summer by the duller colors, the paleness and restriction of the chestnut, with its extensive
. Birds of the Colorado valley ... scientific and popular information concerning North American ornithology;. Birds. 10 DESCRIPTION OF TURDUS MIGRATORIUS 2 in summer: Similar to the $, but the colors duller ; upper parts rather olivaceous-gray; chestnut of the under parts paler, the feathers skirted with gray or white; head and tail less blackish; throat with more white. Bill much clouded with dusky. â ,? 5 in winter and young: Similar to the adult female, but receding some- what farther from the $ in summer by the duller colors, the paleness and restriction of the chestnut, with its extensive skirting with white, lack of distinction of the color of the head from that of the back, tendency of the white spot before the eye to run into a superciliary streak, and dark color of most of the bill. "Very young birds have the back speckled, each feather being whitish centrally, with a dusky tip, and the cinnamon of the under parts is spotted with blackish. The greater coverts are tipped with white or rufous, fre- quently persistent, as are also some similar markings on the lesser coverts. Albinos, partial or complete, of this species are of comparatively frequent occurrence. In specimens bred in the Colorado Basin and other portions of the South- west, there is a tendency to greater length of the tail; this member averag- ing in length nearly at the maximum of that of Eastern specimens. With this is coupled the reduction or extinction of the white spot on the exterior Fig. 3.âHead of Robin, natural size. THE Eobin is founi in all parts of Korth America. It also occurs in Greenland, on islands in Bering's Sea, on several of the West India islands, as Bermuda, Cuba, and Tobago; and through Mexico to Guatemala. It has even been known to cross the Atlantic, having been several times shot in Europe.* Such general statement of its distribution requires little if any qualification. For, though it is a woodland bird, like all of its tribe, and therefore scarc
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