Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 98-99
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 106
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 121-124
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 59-61
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 146-147
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 18-21
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 76-78
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 103-105
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 2-3
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 3-6
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 6-7
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 11-13
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 25-28
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 28-31
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 67-68
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 75-76
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 80-86
Published in Bull Brit Ornithol Club, in 1960, in volume 80, pages 86-88
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 113-114
Published in Bulletin of The British Ornithologists' Club, in 1960, in volume 80, pages 141-142