Published in Bulletin of the British Ornithologists' Club, in 1922, in volume 42, pages 44-47

Created: 2015-05-09, modified: 2015-05-09

Published in Bulletin of the British Ornithologists' Club, in 1922, in volume 42, pages 60-64

Created: 2015-05-09, modified: 2015-05-09

Published in Bulletin of the British Ornithologists' Club, in 1922, in volume 42, pages 72-76

Created: 2012-11-13, modified: 2015-05-09

Published in Bulletin of The British Ornithologists' Club, in 1922, in volume 42, pages 140-141

Created: 2012-07-01, modified: 2012-07-01

Published in Bulletin of the British Ornithologists' Club, in 1922, in volume 43, pages 20-23

Created: 2015-11-10, modified: 2015-11-10

Published in Bulletin of The British Ornithologists' Club, in 1922, in volume 43, pages 38-39

Created: 2012-07-01, modified: 2012-07-01