Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 17-19
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 23-25
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 25-27
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 28-31
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 32-35
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 36-37
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 42-44
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 47-49
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 49-55
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 55-59
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 59-63
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 63-68
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 69
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 74-85
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 86-91
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 92
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 94-107
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 115-117
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 118-128
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 129-134
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 134-137
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 137-143
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 145-151
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 151-157
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 157-165
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 165-168
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 168-172
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 173-177
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 181-184
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 189-191
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, pages 191-192
Published in Bulletin of the British Ornithologists' Club, in 1987, in volume 107, issue 1, pages 6-16
Published in Bulletin of The British Ornithologists' Club, in 1987, in volume 107, issue 1, pages 37-41