Polyphyly of the hawk genera Leucopternis and Buteogallus (Aves, Accipitridae): multiple habitat shifts during the Neotropical buteonine diversification
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* Corresponding author: Fabio SR do Amaral fabioraposo@hotmail.com
BMC Evolutionary Biology 2006, 6:10 doi:10.1186/1471-2148-6-10