title: Pleistocene avifaunas and the overkill hypothesis.
abstract: At the end of the North American Pleistocene, birds and mammals suffered comparable degrees of generic extinction. Both the magnitude and pattern of avian extinction are incompatible with the hypothesis that humans played a major role in causing the demise of numerous North American mammalian genera at this time.
authors.forename: D K
authors.initials: DK
authors.lastname: Grayson