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

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 t...

Full description

Saved in:
Bibliographic Details
Published in:Waterbirds (De Leon Springs, Fla.) Fla.), 2004-12, Vol.27 (4), p.483-485
Main Authors: Peralta-Gallegos, J C, Castellanos-Vera, A, Ortega-Rubio, A
Format: Article
Language:English
Subjects:
Larus occidentalis
Podiceps nigricollis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1524-4695
DOI:10.1043/1524-4695(2004)027<0483:PBTWGO>2.0.CO;2