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COPYRIGHT 2005 Wilson Ornithological Society
Members of the Troglodytidae are known for their almost completely insectivorous habits. Twenty-two species of this family have been reported for Costa Rica (Barrantes et al. 2002) and they are described as incessant searchers of insects, larvae, spiders, and other invertebrates. They seek their food in forests, thickets, open groves, grasslands, and marshes. In Costa Rica, the House Wren (Troglodytes aedon) is commonly found around human habitations and in man-made habitats. It is a conspicuous resident species occurring from lowlands to 2,750 m, and is rarely found in extensively forested areas or dry lowlands (Stiles and Skutch 1989).
On 25 May 2002, in Golfito, Puntarenas Province, Costa Rica (08[degrees] 39' N, 83[degrees] 09' W), we observed a House Wren holding a juvenile house gecko (Hemidactylus frenatus) in its bill. At the onset of our observation (11:06 CST), the bird held the gecko by the neck and was perched in the upper part of a...
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