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lab:
research interests: Behavior and populations in birds and mammals
Research Interests
Field studies of behavior and populations in birds and mammals Hormones and behavior in birds Analysis of vocal communication in animals Nest building in birds Ornithology Behavioral energetics of birds
Selected Publications
N. E. Collias and Elsie C. Collias. 2004. Comparison of vocal signals of three species of African finches Behaviour .
N.E. Collias and Elsie C. Collias. 2004. Village Weaver, Black-headed Weaver, Spotted-backed Weaver In The Birds of Africa, Princeton University Press Vol. 7: 164-170 .
N.E. Collias, R.J. Barfield and E.S. Tarvyd. 2002. Testosterone versus psychological castration in the expression of dominance, territoriality and breeding behavior by male village weavers (Ploceus cucullatus) Behaviour 139: 801-824 .
N.E Collias. 2000. Vocal signals of the Village Weaver: spectrographic classification and the code of communication Condor 102: 60-80 .
N.E. Collias. 2000. Filial imprinting and leadership among chicks in family integration of the domestic fowl Behaviour 137: 197-211 .
N.E. Collias and E.C. Collias.. 1998. Seeking to understand the living bird. The 1997 Margaret Morse Nice Lecture Wilson Bulletin 110(1): 28-44 .
N.E Collias. 1997. On the origin and evolution of nest building by passerine bird Condor 99: 253-270 .
N.E. Collias and E.C. Collias. 1996. Social organization of a population of Red Junglefowl, Gallus gallus, related to evolution theory Animal Behaviour 51: 1337-1354 .
N.E. Collias. 1991. The rule of American zoologists and behavioral ecologists in the development of animal sociology, 1934-1964 Animal Behaviour 41: 613-631 .
N.E. Collias and E.C. Collias.. 1985. Convergent evolution as a guide to selection pressures in the evolution of African weaverbirds (Ploceidae) Proc. 6th Pan-African Ornithol. Congress 205-212 .