@inproceedings{inproceedingse887cab1,
title   = {Cranial osteology of the black-collared hawk (Busarellus nigricollis, Accipitridae) and the non-monophyly of traditional buteonine hawks},
author = {Migotto, Rafael and Alvarenga, H. and Hofling, Elizabeth},
year = {2010},
booktitle   = {International Ornithological Congress}
}