Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 2-5

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 5-7

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 7-9

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 9-11

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 11-13

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 17-20

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 21-25

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 25-30

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 30-39

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 41-45

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 45-46

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 46-47

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 47-52

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 52-54

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 54-60

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 62-64

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 64-65

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 65-67

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 67-69

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 69-70

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 70-77

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 81-84

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 84-87

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 87-91

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 91-94

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 105

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 106-107

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 108-110

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 110

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 113-114

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 114-116

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 117-118

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 124-131

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 131-132

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 133-134

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 134-137

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 137-138

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 138-140

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 140-141

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 141-142

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 148-149

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 149-152

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 162-163

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 164-169

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 170-172

Published in Bulletin of The British Ornithologists' Club, in 1964, in volume 84, pages 172