Published in Journal of Raptor Research, in 2005, in volume 39, issue 1, pages 55-60

Created: 2017-04-07, modified: 2017-04-07

Published in The Wilson Bulletin, in 2004, in volume 116, issue 4, pages 347-351

Created: 2016-12-04, modified: 2016-12-04

Published in Journal of Raptor Research, in 1999, in volume 33, issue 3, pages 264-267

Created: 2017-04-07, modified: 2017-04-07

Published in Rodriguésia, in 2006, in volume 57, issue 1, pages 103-126

Created: 2016-07-26, modified: 2016-07-26