Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 11-12

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 33

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 34-36

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 72

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 77-79

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 79-82

Published in Bulletin of The British Ornithologists' Club, in 1953, in volume 73, pages 83-84