Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 5-7

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 8-15

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 16-22

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 22-27

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 34-39

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 40-46

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 46-57

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 58

Published in Bulletin of the British Ornithologists' Club, in 2000, in volume 120, pages 62-63

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 63-64

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 75-102

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 103-112

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 112-120

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 120-128

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 129-133

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 133-136

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 146-148

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 149-153

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 154-172

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 173-178

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 179-185

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 186-189

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 189-195

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 196-198

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 198-200

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 205-208

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 209-212

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 213-229

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 230-237

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 237-250

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 251-259

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 259-260

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 260

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 261-266

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, pages 266-280

Published in Bulletin of The British Ornithologists' Club, in 2000, in volume 120, issue 1, pages 27-33

Published in Bulletin of the British Ornithologists' Club, in 2000, in volume 120, issue 1, pages 59-62