I38 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I43 



Cole, L. C. 



i960. Competitive exclusion. Science, vol. 132, No. 34^3. PP- 348-349- 

 Cruz Lima, E. da. 



1945. Mammals of Amazonia. Vol. 1. General introduction and primates. 



Mus. Paraense Emilio Goeldi Hist. Nat. e Etnogr., Belem do Para, 



Rio de Janeiro. 

 Darlington, P. T., Jr. 



1957. Zoogeography. New York. 

 Davis, D. E. 



1946. A seasonal analysis of mixed flocks of birds in Brazil. Ecology, 



vol. 27, pp. 168-181. 

 Eisenmann, E. 



1952. Annotated list of birds of Barro Colorado Island, Panama Canal 



Zone. Smithsonian Misc. Coll., vol. 117, No. 5, pp. 1-62. 

 1955. The species of Middle American birds. Trans. Linn. Soc. New York, 



vol. 7, pp. 1 -128. 

 1957- Wood warblers in Panama. In The Warblers of America, by L. Gris- 



com, A. Sprunt, Jr., et al., pp. 286-297. 

 Gannon, G. R. 



1934. Associations of small insectivorous birds. Emu, vol. 34, pp. 122-129. 

 Gibb, J. A. 



1954. Feeding ecology of tits, with notes on treecreeper and goldcrest. 



Ibis, vol. 06, pp. 513-543. 

 Hardin, G. 



i960. The competitive exclusion principle. Science, vol. 131, No. 3409, 



pp. 1292- 1297. 

 Hartley, P. H. T. 



*953- An ecological study of the feeding habits of English titmice. Journ. 



Anim. Ecol., vol. 22, pp. 261-288. 

 Hellmayr, C. E. 



1925. Catalogue of birds of the Americas. Part IV, Furnariidae — Dendro- 



colaptidae. Field Mus. Nat. Hist. Publ. 234, Zool. Ser., vol. 13, 



pp. 1-390. 

 J 935- Catalogue of birds of the Americas. Part VIII, Alaudidae — Comp- 



sothylpidae. Field Mus. Nat. Hist. Publ. 347, Zool. Ser., vol. 13, 



pp. 1-541. 

 1936. Catalogue of birds of the Americas. Part IX, Tersinidae — Thraupidae. 



Field Mus. Nat. Hist. Publ. 365, Zool. Ser., vol. 13, pp. 1-458. 

 1938. Catalogue of birds of the Americas. Part XI, Ploceidae — Catambyl- 



rhynchidae — Fringillidae. Field Mus. Nat. Hist. Publ. 430, Zool. 



Ser., vol. 13, pp. 1-662. 

 Hinde, R. A. 



1952. The behaviour of the great tit (Parus major) and some related spe- 

 cies. Behaviour, Suppl. 2. 

 *953- Appetitive behaviour, consummatory act, and the hierarchical organi- 

 zation of behaviour — with special reference to the great tit (Parus 



major). Behaviour, vol. 3, pp. 189-224. 



