AVIS-IBIS

Birds of Indian Subcontinent

Predation by the Western Gull on the Eared Grebe at a Salina in Mexico

Publication Type:Journal Article
Year of Publication:2004
Authors:Peralta-Gallegos, JCesar, Castellanos-Vera, A, ORTEGA-RUBIO, ALFREDO
Journal:Waterbirds: The International Journal of Waterbird Biology
Volume:27
Issue:4
Date Published:2004
ISBN Number:15244695
Keywords:Laridae, Larus, Larus occidentalis, Mexico, Podiceps, Podiceps nigricollis, Podicipedidae
Abstract:We studied the predation of the Western Gull (Larus occidentalis) on the Eared Grebe (Podiceps nigricollis) from December 2002 to June 2003 at a solar saltworks. Mechanisms of predatory behavior, such as use of perching site, attack maneuvers and killing and catching grebes, as well as behavior of the grebes as a response to the presence and attacks by gulls, were recorded. In all 35 cases where a gull attempt to feed was seen, it was successful in every case. This is the first report about predation by the Western Gull on the Eared Grebe.
URL:http://www.jstor.org/stable/1522400
Short Title:Waterbirds: The International Journal of Waterbird Biology
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