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1 March 2009 Attempts of Interbrood Kleptoparasitism in Grey Heron Nestlings
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Abstract

Attempts of interbrood food theft (food kleptoparasitism) from chicks of Grey Heron (Ardea cinerea) by foreign nestlings are reported from three heronries situated in northern Poland. Such behavior was observed more often in two of the three sites studied. In one colony, it was recorded occasionally. Possible reasons of intercolonial differentiation in food theft attempts occurrence are discussed.

Dariusz Jakubas "Attempts of Interbrood Kleptoparasitism in Grey Heron Nestlings," Waterbirds 32(1), (1 March 2009). https://doi.org/10.1675/063.032.0115
Received: 13 December 2007; Accepted: 1 July 2008; Published: 1 March 2009
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