Abstract

A review of energetics studies of raptorial species introduces four separate studies of temperature regulation by raptors. Golden Eagle (Aquila chrysaetos) nest site selection, as influenced by direction of exposure, is discussed. The data show strong directional preferences to the NNW by southern populations and SSE by northern populations. The tarsometatarsus is shown to have a thermoregulatory function in large falcons, and adaptations of this mechanism to varied habitats are examined. Color phase in Screech Owls (Otus asio) is shown to be related to metabolic differences that may explain the distributions of the color morphs. Development of thermoregulation in Flammulated Owls (Otus flammeolus) is examined.

Degree

PhD

College and Department

Plant and Wildlife Sciences

Rights

http://lib.byu.edu/about/copyright/

Date Submitted

1975-05-30

Document Type

Dissertation

Handle

http://hdl.lib.byu.edu/1877/Letd250

Keywords

Body temperature, Regulation; Energy metabolism; Owls; Falcons

Language

English

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