Published in Bulletin of the British Ornithologists' Club, in 2015, in volume 135, issue 2, pages 190-192

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

Published in Journal of Raptor Research, in 1998, in volume 32, issue 3, pages 195-201

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

Published in Transactions of the Royal Society of South Africa, in 1913, in volume 3, issue 1, pages 249-254

Created: 2016-04-30, modified: 2016-04-30

Published in Journal of Raptor Research, in 2002, in volume 36, issue 4, pages 300-308

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

Published in Transactions of The Royal Society of South Africa, in 1913, in volume 3, pages 231-241

Created: 2017-10-11, modified: 2017-10-11

Published in Journal of South African Botany, in 1979, in volume 45, issue 3, pages 279-293

Created: 2024-09-05, modified: 2024-09-05

Published in Journal of South African Botany, in 1979, in volume 45, issue 4, pages 433-452

Created: 2024-09-05, modified: 2024-09-05