The Oaxaca Sparrow (Aimophila notosticta) is a species of bird in the Emberizidae family. It is endemic to the Mexican state of Oaxaca, where it lives in dry forests and thornscrub. It is threatened by habitat loss.
Source
BirdLife International 2004. Aimophila notosticta. 2006 IUCN Red List of Threatened Species. Downloaded on 25 July 2007.