Front Matter

1-3

Pink-footed geese of Iceland and Greenland: a population review based on an aerial survey of pjrsrver in June, 1970

5-17

Distribution and breeding biology of the lesser snow goose in central Arctic Canada

18-28

Biological notes on the emperor goose in north-east Siberia

29-34

Passage of the barnacle goose through the Baltic area

35-43

The Auckland Island flightless teal

44-45

Observations on sound production in the Anatidae

46-59

Parental carrying of young by goosanders

60

Pre-dusk rafting flights of wintering goldeneyes and other diving ducks in the Province of Quebec

61

The numerical distribution of some British breeding

63-70

Mute Swan flocks

71-88

Differential migration of the sexes and other aspects of the recovery overseas of mallard ringed at Borough Fen Decoy, Northamptonshire

89-97

Further experiments in dispersal of phytoplankton by birds

98-99

Food and feeding habits of the common eider at Seafield, Edinburgh, in winter

100-106

Goose feeding and cellulose digestion

107-113

On the autumn food of Barnacle Geese at Caerlaverock National Nature Reserve

114-119

The Whooper Swans of Hyoko

120-121

International conference on the conservation of wetlands and waterfowl, Ramsar, Iran

122-125

A visitor survey at Slimbridge

126-132

Wildfowl 22

Report

155-

Research

133-154