Published in Bulletin of the British Ornithologists' Club, in 1901, in volume 11, pages 47

Published in Bulletin of the British Ornithologists' Club, in 1901, in volume 11, pages 57

Published in Bulletin of the British Ornithologists' Club, in 1901, in volume 11, pages 60

Published in Bulletin of the British Ornithologists' Club, in 1901, in volume 11, pages 67

Published in Bull. Br. Ornithol. Club, in 1901, in volume 12, pages 24-25