Why Are Waxwings "Waxy"? Delayed Plumage Maturation in the Cedar Waxwing

Cedar Waxwings (Bombycilla cedrorum) often have their secondaries tipped with red waxlike appendages, but a plausible hypothesis for the function of these tips has not been presented. Both males and females may have such tips, but second-year birds normally have none or only a few. This appears to b...

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Veröffentlicht in:	The Auk 1988-01, Vol.105 (1), p.61-69
Hauptverfasser:	Mountjoy, D. James, Robertson, Raleigh J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aviculture Biological and medical sciences Bird banding Bird nesting Birds Bombycilla cedrorum Breeding Development. Metamorphosis. Moult. Ageing Female animals Fundamental and applied biological sciences. Psychology Male animals Mating behavior Plumage Songbirds Vertebrates: anatomy and physiology, studies on body, several organs or systems
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