Published in Bulletin of The British Ornithologists' Club, in 1908, in volume 21, pages 76-78

Published in Bulletin of The British Ornithologists' Club, in 1908, in volume 21, pages 88-91

Published in Bulletin of The British Ornithologists' Club, in 1908, in volume 23, pages 7-11

Published in Bulletin of The British Ornithologists' Club, in 1908, in volume 23, pages 17