250 U.S. NATIONAL MUSEUM BULLETIN 23 3 



Walkinshaw, Lawrence H. — Continued 



1953. Life history of the prothonotary warbler. Wilson Bull., vol. 65, 

 pp. 152-168. 



1959. The prairie warbler in Michigan. Jack-Pine Warbler, vol. 37, pp. 



54-63. 

 1961. The effect of parasitism by the brown-headed cowbird on Empidonax 

 flycatchers in Michigan. Auk, vol. 78, pp. 266-268. 

 Wallace, Geokge J. 



1945. Seasonal records of Michigan birds. Jack-Pine Warbler, vol. 23, 

 pp. 165-176. 

 Wallace, G. J., and Black, C. T. 



1949. Seasonal records of Michigan birds, summer and fall, 1948. Jack- 

 Pine Warbler, vol. 27, pp. 13-30. 

 Walton, J. 



1879. [Note.] Oologist, vol. 4, p. 78. 

 Walton, Mason A. 



1903. A hermit's wild friends. Pp. 211-214. 

 Warner, Dwain W. 



1951. The nesting season-1950. Flicker, vol. 23, pp. 1-8. 

 Warren, Benjamin Harry 



1890. Report on the birds of Pennsylvania. 2nd ed., rev., pp. 434, pis. 100. 

 Warren, Edward R. 



1910. Some central Colorado bird notes. Condor, vol. 12, pp. 23-39. 

 Watkins, L. Whitney 



1900. Michigan birds that nest in open meadows. Michigan Acad. Sci., 

 1st rept., pp. 66-75. 

 Webb, John S., and Wetherbee, David Kenneth 



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



Banding, vol. 31, pp. 83-87. 

 Webster, Frank B. 



1890. [Note.] Ornithologist and Oologist, vol. 15, p. 31. 

 [Webster, Frank B.] 



1891. Brief notes. Ornithologist and Oologist, vol. 16, pp. 108-109. 

 Webster, Fred S. 



1956. South Texas region. Audubon Field Notes, vol. 10, pp. 394-397. 



1957. South Texas region. Audubon Field Notes, vol. 11, p. 418. 



1958. South Texas region. Audubon Field Notes, vol. 12, pp. 424-428. 

 Wells, William 



1934. Nesting notes of Kansas birds. Oologist, vol. 51, pp. 130-131. 



1940. Birds breeding in Anderson County, Kansas, 1933-1939. Oologist, 

 vol. 57, pp. 50-53. 

 Wickstrom, George 



1951a. Seasonal records of Michigan birds: Summer and fall 1950. Jack- 

 Pine Warbler, vol. 29, pp. 143-153. 



1951b. Seasonal records of Michigan birds: Summer 1951. Jack-Pine 

 Warbler, vol. 29, pp. 107-114. 



1953. Seasonal records of Michigan birds : Summer 1953. Jack-Pine Warbler, 

 vol. 31, p. 147. 

 WiLLET, George 



1912. Birds of the Pacific slope of southern California. Pacific Coast 

 Avifauna, no. 7, pp. 122. 



