Published in Bulletin of The British Ornithologists' Club, in 1997, in volume 117, pages 237

Created: 2012-12-02, modified: 2012-12-02

Published in Bulletin of The British Ornithologists' Club, in 2010, in volume 130, issue 4, pages 277-285

Created: 2015-05-17, modified: 2015-05-17

Published in Forktail, in 2012, in volume 28, pages 169-171

Created: 2019-05-12, modified: 2019-05-12

Published in Forktail, in 2014, in volume 30, pages 130-131

Created: 2019-05-12, modified: 2019-05-12

Published in Bulletin of the British Ornithologists' Club, in 2011, in volume 131, issue 2, pages 94-102

Created: 2018-10-08, modified: 2018-10-08

Published in Forktail, in 2004, in volume 20, pages 55-62

Created: 2019-05-12, modified: 2019-05-12

Published in Records of The Western Australian Museum, in 1996, in volume 18, issue 2, pages 157-178

Created: 2017-11-26, modified: 2017-11-26

Published in Journal of Raptor Research, in 2004, in volume 38, issue 4, pages 343-349

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

Published in Forktail, in 2016, in volume 32, pages 36-40

Created: 2019-05-12, modified: 2019-05-12