Published in Bulletin of The British Ornithologists' Club, in 1997, in volume 117, pages 223-235
Created: 2012-12-02, modified: 2012-12-02
Published in Bulletin of The British Ornithologists' Club, in 1995, in volume 115, pages 188-189
Created: 2012-12-02, modified: 2012-12-02
Published in Bulletin of the British Ornithologists' Club, in 2014, in volume 134, issue 2, pages 145-154
Created: 2018-10-08, modified: 2018-10-08
Published in Bulletin of The African Bird Club, in 2008, in volume 15, issue 1, pages 108-109
Created: 2021-02-23, modified: 2021-02-23