93 



to Dr. P. R. Hoy, of Racine, Wisconsin; to Dr. H. B. Bannister, of 

 Evanston ; to Mr. C. N. Holden, Jr., of Chicago; to Mr. F. T. Jencks, 

 of Providence, R. I., who was ray companion in the field during the 

 spring of 1876, and who added materially to rny notes; and especially 

 to Mr. F. L. Rice of Evanston, who placed at my disposal notes ex- 

 tending over several years. I am also indebted to Messrs. T. H. and 

 C. W. Douglas, of Waukegan, and to others for valuable notes, which 

 are duly acknowledged in the following pages. My own observations 

 have been continued through the last three years, and have been 

 made in various localities in the two above named counties. The 

 dates of the migrations and nesting given indicate the average of ob- 

 servations continued through several years. 



Family TURDIDJB. 

 Genus Turdus Linn. 



1. T. mustelinus Gmcl. WOOD THRUSH. Common summer resi- 

 dent in suitable places. Arrives first of May; nests the last of the 

 month and leaves September first. 



2. T. fuscescens Sleph. WILSON'S THRUSH. Rather rare sum- 

 mer resident. Arrives in small numbers the second week of May and 

 departs the first of September. 



3. T. alicise J3d. ALICE'S -THRUSH. . Very abundant migrant; 

 frequenting open woods and the borders of adjacent fields. May 1st 



'to 20th; September 1st to October oth. I have rarely heard this spe- 

 cies sing except during damp, gloomy days in spring, when trees and 

 bushes were dripping with a fine misty rain. On such occasions, I 

 have often been greeted by the clear metallic notes of this thrush 

 rising clear and strong, filling the air with a sweet, indescribable 

 melody, and then dying away in measured cadence until the last notes 

 are scarcely distinguishable. As the first strain ends the song is re- 

 echoed by hidden musicians on every hand, until every tree seemed 

 to give forth the weird music. 



4. T. swainsoni Caban. SWAIXSON'S THRUSH. Abundant mi- 

 grant and a very rare summer resident. Arrives in spring a few days 

 later than the preceding, and at about the same time in fall. I ob- 

 tained a specimen near Chicago, June 7th, 1873, and July Oth, the 

 same year, Mr. Rice obtained a secgnd specimen. The song of this 

 species is similar, but much less musical, than that of the preceding. 



5. T. pallasii Caban. HERMIT Tuuusii. Very abundant mi- 

 grant. April 1st to May 10th, and September 20th to October 31st. 

 Several years since, during the fall migration, one of these birds was 

 brought to me alive, it having entered a neighbor's house in Chicago, 

 through an open window in which were some very large plants. This, 



