...Kathleen S. Lynch; Elisha Henson Avian brood parasites display enhanced annual fecundity compared to other passerine birds. Female brood parasitic brown-headed cowbirds ( Molothrus ater ) lay a staggering estimated 40-50 eggs/year. We examine how reproductive steroids mediate a possible tradeoff...

...Kathleen S. Lynch; Annmarie Gaglio; Elizabeth Tyler; Joseph Coculo; Matthew I. M. Louder; Mark E. Hauber ABSTRACT Obligate avian brood parasites are raised by heterospecific hosts and, therefore, lack crucial early exposure to relatives and other conspecifics. Yet, young brood parasites readily...

[email protected] ) 1 4 2004 © The Company of Biologists Limited 2004 2004 megapode social aggregation imprinting species recognition brood parasite behavioural development Understanding the mechanisms by which animals aggregate with members of their own species is a fundamental...