Breeding habitat selection in cliff swallows: the effect of conspecific reproductive success on colony choice

Summary 1. One way that animals may select breeding sites is by assessing the reproductive success of conspecifics in one season and settling the next year in those habitat patches where success collectively had been greatest. This sort of habitat assessment may promote the formation of colonies at high quality sites. 2. We examined whether cliff swallows, Petrochelidon pyrrhonota, in south-western Nebraska used conspecific breeding...