Published in Bulletin of the British Ornithologists' Club, in 1928, in volume 48, pages 125-136

Created: 2014-10-08, modified: 2014-10-08

Published in Bulletin of The British Ornithologists' Club, in 1928, in volume 49, pages 20-21

Created: 2012-09-16, modified: 2012-09-16

Published in Bulletin of The British Ornithologists' Club, in 1928, in volume 49, pages 48-49

Created: 2012-09-16, modified: 2012-09-16