Predation of a wintering migratory songbird by introduced rats : can nocturnal roosting behavior serve as predator avoidance?

Abstract

Many studies have demonstrated the deleterious effects of introduced predators on resident populations of island birds, but few have quantified their effect on the survival and space-use behavior of migratory species. We used radio telemetry to investigate the winter survival and roosting patterns of Bicknell's Thrush (Catharus bicknelli) at two sites in the Dominican Republic.