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Breeding-season food habits of burrowing owls (Athene cunicularia) in southwestern Dominican Republic

Journal of Raptor Research

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Abstract

Diet data from 20 Burrowing Owl (Athene cunicularia) nests were collected in southwestern Dominican Republic in 1976, 1982, and 1996. Invertebrates (53.3%) comprised the most numerous prey items (N = 396) delivered to nests by adult owls, but vertebrates (46.7%) were much better represented than in other studies of Burrowing Owl diet. Among vertebrates, birds (28.3% of all items) and reptiles (14.9%) were most important, whereas mammals (1.0%) and amphibians (2.5%) were less commonly delivered to nests. Vertebrates, however, comprised more than twice (69.2%) of the total biomass as invertebrates (30.8%), with birds (50.4%) and reptiles (12.8%) the most important of the vertebrate prey classes. A positive relationship was observed between bird species abundance and number of individuals taken as prey by Burrowing Owls.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Breeding-season food habits of burrowing owls (Athene cunicularia) in southwestern Dominican Republic
Series title:
Journal of Raptor Research
Volume
32
Issue:
3
Year Published:
1998
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Raptor Research
First page:
241
Last page:
245
Number of Pages:
5