Filters: Tags: owls (X)8 results (70ms)
In 1995, the discovery of leg malformations in several screech owl (Otis asio) nestlings and in their female parent at a Department of Energy (DOE) Superfund site in South Carolina prompted an investigation into the nature of the observed abnormalities. Surviving nestlings and the female parent were transferred to a captive screech owl breeding colony at the USGS Patuxent Wildlife Research Center, Laurel, MD. The malformed female parent and her offspring were each mated with normal owls from the colony for 3 yr. Matings of the malformed female produced five malformed and six normal owls, all owls produced by matings of normal offspring were normal. Malformed offspring were euthanized when it became apparent that...
Response of a Forest Raptor Community to Broadcasts of Heterospecific and Conspecific Calls During the Breeding Season