The Migration of North American Birds 



345 



fall migration, continued 



LOCALITY 



Rantoul, 111 



Chicago, 111 



Richmond, Ind 



Waterloo, Ind 



Oberlin, Ohio 



Wauseon, Ohio 



Grand Rapids, Mich 

 Ann Arbor, Mich. . . 

 London, Ontario. . . 

 Ottawa, Ontario. . . . 



Keokuk, Iowa 



Grinnell, Iowa 



Onaga, Kans 



Badger, Neb 



Vermilion, S. Dak.. . 

 Aweme, Manitoba. . 

 Qu'Appelle, Sask.. . . 

 Flagstaff, Alta 



FALL MIGRATION 



BRONZED COWBIRD 



The Bronzed Cowbird (Tangavius (zneus) is a tropical bird of Central 

 America and Mexico, of which there are now recognized three subspecies. One 

 of these, the Lesser Bronzed Cowbird (Tangavius ceneus assimilis), is found 

 only in southwestern Mexico from Oaxaca to Jalisco. Both the others occur in 

 the United States, but only along the southwestern border. The distribution 

 of these is as follows: 



The Bronzed Cowbird (Tangavius ceneus ceneus) ranges in northwestern 

 Mexico south to Tepic and north to Sonora. It has been taken also in Arizona, 

 at Tucson on April n and May 21, 1909, and at Sacaton on May 28. 



The Red-Eyed Cowbird (Tangavius ceneus involucratus) occurs north to 

 central southern Texas and south through eastern Mexico and Central America 

 to Panama. It is resident in the valley of the Lower Rio Grande, but is appar- 

 ently only a summer visitor farther north in Texas. 



