Wildlife Research Wildlife Research Society
Ecology, management and conservation in natural and modified habitats
RESEARCH ARTICLE

The comparative ecology of Australian corvids. V. Food

I Rowley and WJM Vestjens

CSIRO Wildlife Research 18(1) 131 - 155
Published: 1973

Abstract

1810 corvid specimens were obtained during a 7-yr study of the genus Corvus in Australia. Of these, 1490 stomachs provided material for food identification and 1405 contained sufficient material for volumetric estimation. Corvus coronoides and C. tasmanicus were shown to be the main carrion-eating species; C. mellori fed chiefly on insects, while C. orru ate a large quantity of seeds including grain grown for commercial purposes. C. bennetti, the nomadic species of the arid interior, was particularly versatile in its range of food. All species were omnivorous and showed seasonal fluctuations in diet corresponding to changes in the availability of the main food categories: flesh, insects, and seeds.

http://dx.doi.org/10.1071/CWR9730131

© CSIRO 1973


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