LITERATURE CITED 1793 



Wheelock, Irene Grosvenor 



1905. Regurgitative feeding of nestlings. Auk, vol. 22, pp. 54-71. 



1912. Birds of California, ed. 3 (ed. 1, 1904). 

 Wheelwright, H. W. 



1871. A spring and summer in Lapland, ed. 2. 

 Whitaker, Lovie M. 



1957a. Lark sparrow oiling its tarsi. Wilson Bull., vol. 69, pp. 179-180. 



1957b. A resume of anting, with particular reference to a captive orchard 

 oriole. Wilson Bull., vol. 69, pp. 195-262. 

 White, Francis Beach 



1937. Local notes on the birds at Concord, New Hampshire. 

 Whitney, Nathaniel Ruggles, Jr. 



1954. Winter bird population study: Open ponderosa pine forest. Audu- 



bon Field Notes, vol. 8, pp. 283-284. 



1955. Winter bird population study: Open ponderosa pine forest. Audu- 



bon Field Notes, vol. 9, p. 305. 



1956. Winter bird population study: Open ponderosa pine forest. Audu- 



bon Field Notes, vol. 10, p. 300. 

 Whittle, Charles L. 



1922. Miscellaneous bird notes from Montana. Condor, vol. 24, pp. 73-81. 

 1926. On the nature of the relationship existing among land birds during 



sustained aerial migration. Auk, vol. 43, pp. 493-500. 



1928. Xanthochroism in the purple finch. Bull. Northeastern Bird- 

 Banding Assoc, vol. 4, pp. 25-27. 

 Whittle, Helen Granger 



1928. Color-phases of the purple finch. Bull. Northeastern Bird-Banding 

 Assoc, vol. 4, pp. 102-104. 

 Widmann, Otto 



1896. The peninsula of Missouri as a winter home for birds. Auk, vol. 13, 

 pp. 216-222. 



1904. Yosemite Valley birds. Auk, vol. 21, pp. 66-73. 



1907. A preliminary catalogue of the birds of Missouri. 



1911. List of birds observed in Estes Park, Colorado, from June 10 to July 



18, 1910. Auk, vol. 28, p. 316. 

 Wied-Neuwied, Maximilian Alexander Phillips 



1834. Reise in das innere Nord-America in den jahren 1834, vol. 2. 

 Wilbur, San ford R. 



1963. A record of the indigo bunting in northwestern California. Condor, 

 vol. 65, pp. 533-534. 

 Willard, Francis Cottle 



1910. Nesting of the western evening grosbeak (Hesperiphona vespertina 



montana). Condor, vol. 12, pp. 60-62. 

 1912a. A week afield in southern Arizona. Condor, vol. 14, pp. 53-63. 

 1912b. Breeding of the Scott sparrow. Condor, vol. 14, pp. 195-196. 



1913. Late nesting of certain birds in Arizona. Condor, vol. 15, p. 227. 

 1918. Evidence that many birds remain mated for life. Condor, vol. 20, 



pp. 167-170. 



1923. Some unusual nesting sites of several Arizona birds. Condor, vol. 25, 



pp. 121-125. 

 Willett, George 



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



Avifauna, No. 7. 



