246 U.S. NATIONAL MUSEUM BULLETIN 23 3 



Shankland, F. N. 



1924. Some notes on the cowbird. Oologist, vol. 41, pp. 45-47. 

 Shaver, Nelle E. 



1918. A nest study of the Maryland yellow-throat. Univ. Iowa Stud. 

 Nat. Hist., vol. 8, pp. 12, pis. 4. 

 Sheppard, Jay M. 



1959. Mixed-mesophytic canon bottom (McKinley Co., New Mexico). 



Audubon Field Notes, vol. 13, pp. 466-467. 

 Sherwood, Jack 



1929. California notes. Oologist, vol. 46, p. 3. 

 Short, P]rnest H. 



1894. The first day of June, 1894. Oologist, vol. 11, pp. 255-256. 



1896. Birds of western New York. Pp. 20. 

 Sick, Helmut 



1957. Vom Hausspatzen (Passer domesticus) in Brasilien. Die Vogelwelt, 



vol. 78, pp. 1-18. 

 Sick, Helmut, and Ottow, Johann 



1958. Vom brasilianisehen Kuhvogel, Moloihrus bonariensis, und seinen 



Wirten, besonders der Ammerfinken, Zonotrichia capensis. Bonner 

 Zool. Beit., Heft 1, pt. 9, pp. 40-62. 

 Silloway, p. M. 



1917. Some nesting birds of the Judith Basin, Montana, nos. 2, 4. Oologist, 

 vol. 34, pp. 42-45, 156-160. 

 Simmons, George Finley 



1915. On the nesting of certain birds in Texas. Auk, vol. 32, pp. 317-331. 



1925. The birds of the Austin region. Pp. 387. 

 Singley, J. A. 



1888. Notes on some birds of Texas. Bay State Oologist, vol. 1, no. 6, pp. 



48-49. 

 Skutch, Alexander Frank 



1954. Life histories of Central American birds: Families Fringillidae, 



Thraupidae, Icteridae, Parulidae, and Coerebidae. Pacific Coast 



Avif., no. 31, pp. 448. 



1960. Life histories of Central American birds, II: Families Vireonidae, 



Sylviidae, Turdidae, Troglodytidae, Paridae, Corvidae, Hirun- 

 dinidae, and Tyrannidae. Pacific Coast Avif., no. 34, pp. 593. 

 Smith, Charles Piper 



1926. Has the cowbird come to stay? Condor, vol. 28, p. 245. 

 [Smith, F. Napier] 



1951. [Note.] Prov. Quebec Soc. Protect. Birds Ann. Rep. 1950, p. 44. 

 Smith, Harry M. 



1943. Size of breeding populations in relation to egg-laying and reproduc- 

 tive success in the eastern red-wing (Agelaius phoniceus) . Ecology, 

 vol. 24, pp. 183-207. 

 1949. Irregularities in the egg-laying behavior of the eastern cowbird. 

 Journ. Colorado- Wyoming Acad. Sci., vol. 4, p. 60. 

 Smith, Philo, Jr. 



1882. Eggs in a set. Ornithologist and Oologist, vol. 7, p. 182. 

 Smith, Wilbur F. 



1921. The yellow-breasted chat and the cowbird. Bird Lore, vol. 23, pp. 

 175-177. 



