Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 9-17
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 18-21
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 23-34
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 34-41
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 42-43
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 44-47
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 53-60
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 60-61
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 75-84
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 85-87
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 88-92
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 93-96
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 97-102
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 103-108
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 108-119
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 119-120
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 121-126
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 139-145
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 145-147
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 147-152
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 152-166
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 166-168
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 169-172
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 173-178
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 179-187
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 188-189
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 189-190
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 190
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 191
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 195-207
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 209-212
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 213-215
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 216-224
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 225-229
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 234-255
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 255-257
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 257-259
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 260-263
Published in Bulletin of The British Ornithologists' Club, in 1993, in volume 113, pages 263-264
Published in Bulletin of the British Ornithologists' Club, in 1993, in volume 113, issue 1, pages 21-23