BIRD ADAPTATIONS 



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some Alaskan animals in winter and summer. Physiol. 

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22. Kendeigh, S. C. 1934. The role of environment in the life of 



birds. Ecol. Monographs 4:299-417. 



23. Kendeigh, S. C. 1941. Length of day and energy requirements 



for gonad development and egg- laying in birds. Ecology 22: 

 237-248. 



24. Kendeigh, S. G. 1949. Effect of temperature and season on the 



energy resources of the English Sparrow. Auk 66:113-127. 



25. Kendeigh, S. G. 1961a. Energy conserved by birds roosting 



in cavaties. Wilson Bull. 78:140-147. 



26. Kendeigh, S. G. 1961b. The energy cost of incubation. MS. 



27. Kendeigh, S. C., G. G. West, and G. W. Gox. 1960. Annual 



stimulus for spring migration in birds. Animal Behaviour 



8:180-185. 



28. King, J. R. and D. S.Famer. 19 56 . Bioenergetic basis of light- 



induced fat deposition in the White-crowned Sparrow. Proc. 

 Soc. Exp. Biol, and Med. 93:354-359. 



29. King, J. R. and J. S.Famer. 1961. Energy metabolism, thermo- 



regulation and body temperature, p. 215-288. In Marshall's 

 Biology and Gomparative Physiology of Birds. 



30. Koch, H. J. and A. F. deBont. 1944. Influence de la mue sur 



I'intensite de metabolisme chez le pinson, Frinsilla coelebs 

 coelebs . L. Ann. Soc. zool. Belg. 75:81-86. 



31. McAtee. W. L. 1947. Torpidity in birds. Am. Midland Natur- 



alist 38:191-206. 



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