Published in Journal of Raptor Research, in 2005, in volume 39, issue 2, pages 156-159

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

Published in Journal of Raptor Research, in 2003, in volume 37, issue 4, pages 342-344

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

Published in Iberus, in 2001, in volume 19, issue 2, pages 67-85

Created: 2014-01-12, modified: 2014-06-05