@article{article85f987f7,
title   = {Polyphyly of the hawk genera Leucopternisand Buteogallus(Aves, Accipitridae): multiple habitat shifts during the Neotropical buteonine diversification},
author = {Amaral, Fábio Sarubbi Raposo do and Miller, Matthew J. and Silveira, Luís Fábio and Bermingham, Eldredge and Wajntal, Anita},
year = {2006},
journal   = {BMC Evolutionary Biology}
}