Journal of the Yamashina Institute for Ornithology
Online ISSN : 1882-0999
Print ISSN : 1348-5032
ISSN-L : 1348-5032
Short Note
Field Observations of Predation by the Ural Owl Strix uralensis upon the Japanese Horned Beetle Trypoxylus dichotomus septentrionalis
Yoshihito HongoHiroshi Kaneda
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2009 Volume 40 Issue 2 Pages 90-95

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Abstract

Generally, it has been considered that the Ural Owl Strix uralensis feeds mainly on small birds, amphibians and small mammals such as voles, and only rarely on insects. However, we found that the Ural Owl often preys upon the Japanese horned beetle Trypoxylus dichotomus septentrionalis, which has never before been reported as an insect prey species for the Ural Owl. We here demonstrate that Ural Owls at the present study site frequently prey upon Japanese horned beetles for a limited period during summer. Details of the predatory behavior of Ural Owls upon beetles are also given.

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© 2009 Yamashina Institute for Ornitology
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