Male Northern Orioles Eject Cowbird Eggs: Implications for the Evolution of Rejection Behavior

We experimentally parasitized 16 nests of the Northern Oriole (Icterus galbula) to determine the method of rejection of Brown-headed Cowbird (Molothrus ater) eggs, i.e., removal by spiking or by breaking the egg into pieces, and whether males remove cowbird eggs. Cowbird eggs were ejected from all 1...

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Veröffentlicht in:	The Condor (Los Angeles, Calif.) Calif.), 1995-05, Vol.97 (2), p.369-375
Hauptverfasser:	Sealy, Spencer G., Neudorf, Diane L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal behavior Animal ethology Animal nesting Animal reproduction Aves Biological and medical sciences Bird nesting Birds Brood parasitism Eggs Evolution Female animals Fundamental and applied biological sciences. Psychology Icterus galbula Incubation Male animals Molothrus ater Orioles Ornithology Psychology. Psychoanalysis. Psychiatry Vertebrata Vireos
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