Factors Affecting Prey Preparation by Adult Magpies Feeding Nestlings

We collected 1,138 prey items from the guts of nestling Magpies (Pica pica) using neck collars. We noted the alterations (appendages missing, breakage) shown by the prey, and gave an index of preparation to the most abundant prey types (adult beetles and grasshopper nymphs). We then related these in...

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Veröffentlicht in:	The Condor (Los Angeles, Calif.) Calif.), 1999-11, Vol.101 (4), p.818-823
Hauptverfasser:	Ponz, Adrián, Gil-Delgado, José A., Barba, Emilio
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult insects Animal ethology Animal reproduction Appendages Aves Beetles Biological and medical sciences Birds Clutch size Feeding. Feeding behavior Food Foraging Fundamental and applied biological sciences. Psychology Ingestion Magpies Nymphs Ornithology Pica Pica pica Predation Prey Psychology. Psychoanalysis. Psychiatry Vertebrata Vertebrates: anatomy and physiology, studies on body, several organs or systems
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