Front Matter

7-12

Environmental stress on the Whistling Swan

5-7

A continental study of Whistling Swans using neck collars

8-14

The use of small airplanes to gather swan data in Alaska

15-20

Population structure and productivity of Whistling Swans on the Yukon Delta, Alaska

21-26

Trumpeter Swan management

27-32

Hyko: winter habitat of wild swans at Suibara

33-42

A moulting population of non-breeding Mute Swans with special reference to flight-feather moult, feeding ecology and habitat selection

43-53

Mortality of the Black Swan in New Zealand---A progress report

54-55

Lead shot in Bewick's Swans

56-60

Leucistic Bewick's Swans

61-62

Censuses of Anatidae in the central delta of the Niger and the Senegal delta---January 1972

63-80

Fluctuations in the numbers of wildfowl on an equatorial hippo wallow

81-87

Waterfowl in north-east Asia

88-102

A cosmopolitan duck moulting resort; Takslesluk Lake Alaska

103-110

Behaviour and distribution of wild geese in south-east Scotland

111-122

The management of grassland areas for wintering geese

123-130

The manurial effect of Cape Barren Goose droppings

131-134

Studies of shorebirds at Lindisfarne, Northumberland. 1. Feeding ecology and behaviour of the Bar-tailed Godwit

135-140

The systematic status of the Cape Barren Goose as judged by its photo-responses

141-143

Proximate and ultimate determinants of clutch size in Anatidae

144-149

Platform-building by male and female Ruddy Ducks

150-153

Icelandic eiders---a few observations

154-157

Maternal nesting behaviour by male Mallards

158-161

Wildfowl 24

Research

Conservation

Publications