Published in Bulletin of The British Ornithologists' Club, in 1904, in volume 14, pages 42-46

Published in Bull. Brit. Orn. Cl., in 1904, in volume 14, pages 77-78

Published in Bulletin of The British Ornithologists' Club, in 1904, in volume 14, pages 82-83

Published in Bulletin of The British Ornithologists' Club, in 1904, in volume 14, pages 83-84

Published in Bulletin of the British Ornithologists' Club, in 1904, in volume 15, pages 10-11