Front Matter

16

Social and population studies in the Shelduck

5-22

Nesting of the Black Swan at Lake Ellesmere, New Zealand

23-32

Changes in the British-wintering population of the Pink-footed Goose from 1950 to 1975

33-46

Grazing of wild geese on grasslands at Damme, Belgium

47-54

Potential dangers of exotic waterfowl introductions

55-58

The ecology of tapeworm parasites in wildfowl

59-68

Some notes on the Paradise Shelduck

69-70

The behaviour of the White-backed Duck

71-74

Pre-dusk and nocturnal behaviour of Goldeneye, with notes on population composition

75-77

The proportion of yolk in the egg of the Maccoa Duck

78

The status of the Canada Goose in Britain 1967-69

79-85

Weights and measurements of Greylag Geese in Scotland

86-93

The International Wildfowl Research Bureau

94-97

The mid-winter distribution of wildfowl in Europe, northern Africa and south-west Asia, 1967 and 1968

98-111

The migration of the Goldeneye in north-west Europe

112-118

Brent Geese, mudflats and man

119-125

Comments on waterfowl habitat and management problems in Argentina

126-130

Nacton Decoy and its catches

131-137

Major-General C.B. Wainwright, C.B.

138-139

A brief guide to the Flamingos Phoenicopteridae

140-141

[Review of] The Giant Canada Goose

142-142

[Review of] Waterfowl in Australia

142-142

[Review of] A Wealth of Wildfowl

143-143

[Review of] Waterfowl: their Biology and Natural History

143-143

[Review of] Handbuch de Vogel Mitteleuropas

143-143

Wildfowl survey in south-west Asia: progress in 1968

144-147

Wildfowl ringing in Britain, 1968

148

Wild Geese at the New Grounds, 1968-69

149-151

Abberton Ringing Station, 1968

149-151

Borough Fen Decoy, 1968

149-151

Dersingham Decoy, 1968

149-151

Wildfowl censuses and counts

152-153

Loch Leven, 1968

154

Geese at Loch Leven

155

Greylag Geese at Loch Druidibeg

156

Wild swans at Slimbridge, 1968-69

157

Breeding the Rosy or Caribbean Flamingo at the Wildfowl Trust, Slimbridge

163-164

Wildfowl 20

Report

165-