7o8 Field Museum of Natural History — Zoology, Vol. IX. 



360. Hylocichla fuscescens (Steph.). 

 Wilson's Thrush. 



T Urdus fuscescens Steph., A. O. U. Check List, 1895, p. 317. 

 Disir.: Eastern North America, west to the Plains and north to 

 Manitoba, Ontario, and Newfoundland; breeds from northern Ohio, 

 northern Illinois, and Iowa northward; winters sparingly in the Gulf 

 states and southward to Cuba, Yucatan, and Middle America to 

 northern South America. 



Adult: Upper parts, cinnamon brown, nearly uniform, with no 

 decided difference in color between back and tail ; no distinct white 



eye ring; throat and belly, white; 

 sides tinged with pale grayish; 

 breast and sides of throat faintly 

 tinged with buff and marked with 

 numerous small, arrow-shaped spots 

 of brownish olive. Sexes similar. 



Length, 7.45; wing, 3.80; tail, 

 2.85 ; bill, .50. 



A common migrant throughout 

 Illinois and Wisconsin, and a sum- 

 mer resident from northern Illinois 

 northward. The majority arrive 

 early in May and leave the latter part of September. Its song 

 is delightful but not as fine as that of the Wood Thrush. It may be 

 crudely described as che-re-ry, che-re-ry, che-re-ry, or che-u-ry, che-u-ry, 

 che-u-ry, c/ze-M-;->', beginning high and continuing on a descending scale. 

 Mr. W. W. Cooke states that Mr. Kline took two sets of eggs at 

 Polo, Illinois, during the season of 1883. 



It breeds regularly in Wisconsin, but is more common in the north- 

 ern than in the southern portion of the state. 



The nest is built on or near the ground and is composed of leaves, 

 shreds of bark, and small twigs. The eggs are 3 to 5, greenish blue 

 in color, and measure about .86 x .66 inches. 



360a. Hylocichla fuscescens salicicola Ridgw. 

 Willow Thrush. 

 Turdus fuscescens salicicola Ridgw., A. O. U. Check List, 1895, 



P- 317- 



Distr.: Interior regions of North America, from the Rocky Moun- 

 tain region to Illinois and Indiana, north to British Columbia, breeding 



