. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 709 chiefly from North Dakota and Manitoba northward and occasionally- farther south; casual as far east as South Carolina during migrations; in winter to Middle America and northern South America. Special characters: Similar to H. fuscescens, but with upper parts darker and more olive brown, and the streaks on throat and upper breast averaging darker. The Willow Thrush is not uncommon during the migrations in Illinois and probably Wisconsin, but from lack of material I am unable to decide
. The birds of Illinois and Wisconsin. Birds; Birds. Jan., 1909. Birds of Illinois and Wisconsin — Cory. 709 chiefly from North Dakota and Manitoba northward and occasionally- farther south; casual as far east as South Carolina during migrations; in winter to Middle America and northern South America. Special characters: Similar to H. fuscescens, but with upper parts darker and more olive brown, and the streaks on throat and upper breast averaging darker. The Willow Thrush is not uncommon during the migrations in Illinois and probably Wisconsin, but from lack of material I am unable to decide this question. Typical Illinois specimens of both this form and H. fuscescens are represented in the Field Museum collection as well as a number of intermediates. Messrs. Kumlien and Hollister say: "A single specimen taken at Delavan, May 6, 1899, ^-^id identified by Mr. Wm. Brewster, is the sole claim for introducing this race here. We are of the opinion that a careful examination of the migrating fuscescens will reveal numbers of this form, especially, it would seem, in the western part of the ; (Birds of Wisconsin, 1903, p. 126.) Its song is similar to that of the Wilson's Thrush. 361. Hylocichla alicise (Baird). Gray-cheeked Thrush. Turdus alicicB Baird, A. O. U. Check List, 1895, p. 317. Northern and eastern North America, breeding far north- ward (Newfoundland, Labrador, Mackenzie region, Alaska, etc.), migrating south, .east of the Rocky Mountains to the Greater Antilles, Central America, and northern South America. Adult: Upper parts, uniform olive, with little or no difference between color of the back and tail; lores, grayish; middle of upper throat, middle of belly and under tail coverts, white; sides washed with olive gray; lower throat and breast washed with faint tinge of pale buff and thickly marked with blackish arrow- shaped spots. Sexes similar. Length, ; wing, 4; tail, 3 ; bill, .52. The Gray-cheeked Thrush is very common in Illi
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