90 



NORTH AMERICAN FAUNA 69 



Webb, John S., and David Kenneth Wetherbee. 



1960. Southeastern breeding range of the brown-headed cowbird. Bird- 

 Banding, vol. 31, No. 2, p. 83-87. 

 Webster, Fred S., Jr. 



1966. Spring migration — South Texas region. Audubon Field Notes, vol. 

 20, No. 4, p. 525-532. 

 Weston, Francis Marion. 



1965. A survey of the birdlife of Northwestern Florida. Bulletin of Tall 

 Timbers Research Station, No. 5, 147 p. 



Widmann, Otto. 



1895. Swainson's warbler, an inhabitant of the swamp woods of south- 

 eastern Missouri. Auk, vol. 12, No. 2, p. 112-117. 

 Williams, Ellison A. 



1935. Swainson's warbler in the North Carolina mountains. Auk, vol. 52, 

 No. 4, p. 458-459. 

 Williams, Francis. 



1966. Spring migration — Southern Great Plains region. Audubon Field 

 Notes, vol. 20, No. 4, p. 522-525. 



Worthen, Charles K. 



1906. Swainson's warbler in Nebraska. Auk, vol. 23, No. 2, p. 227. 



U.S. GOVERNMENT PRINTING OFFICE: 1971 O 407— 717 



