Authors: GÓMEZ-TEJEDOR, H. and DE LOPE, F.
Published: Volume 42(1), June 1995. Pages 77-81.
Language: Spanish
Original Title: Cleptoparasitismo en la Gaviota Sombria (Larus fuscus): selección de víctimas y diferencias entre clases de edad
Keywords: Larus fuscus, kleptoparasitism, food robbing and refuse dump.
Summary:
In a refuse dump (Southwestern Spain), Lesser Black-backed Gull kleptoparasitized mainly conspecifics, although Larus ridibundus, Bubulcus ibis and Ciconia ciconia were also attacked. Of 177 attempts, 37.3% were successful. Theft success did not vary among host species. The conspicuous appearance of Larus fuscus, but no social factors, seemed to account for the importance of intraspecific kleptoparasitism. Adult gulls were more successful in stealing than juveniles.
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