Front Matter

The absence of flightless moult in the Ruddy-headed Goose in Argentina and Chile

5-6

Some mortality patterns of Greater Magellan Geese on the Falkland Islands

7-11

Escape behaviour of Steamer Ducks

12-16

Observations on the feeding ecology and bioenergetics of the White-faced Whistling Duck in Venezuela

17-21

Food and distribution of three Bucephala species in British Columbia waters

22-30

Population and status of Emperor Geese along the north side of the Alaska Peninsula

31-38

Habitat ecology of Pacific Black Brant and other geese moulting near Teshekpuk Lake, Alaska

39-57

Ecological correlates of territory and home range size in North American dabbling ducks

58-62

Observations on the incubation and post-hatching behaviour of the Greenland White-fronted Goose

63-72

The status, aviculture and re-establishment of Brown Teal in New Zealand

73-80

Some notes on Freckled Duck shot in Victoria, Australia, 1981

81-87

Food habits of the Freckled Duck and associated waterfowl in North-western New South Wales

88-93

The nesting biology of ducks in the Marismas of the Guadalquivir, south-western Spain

94-104

Activity and time budget of Tufted Ducks on Swiss lakes during winter

105-112

Inland and saltmarsh feeding of wintering Brent Geese in Essex

113-118

The effect of photoperiod on the timing of spring migration in the Bewick's Swan

119-132

Causes of mortality among whistling ducks in captivity

133-139

Diseases of stiff-tailed ducks in captivity

140-144

'Nonsense' orientation of Pintail, Wigeon and Mallard from Nacton, Suffolk

145-150

The abundance and distribution of intertidal invertebrates, and an estimation of their selection by Shelduck

151-158

Clutch parasitism and nesting interference between Shelducks at Aberlady Bay

159-163

Leech parasitism of waterfowl in the British Isles

164-170

Numbers of swans and ducks in Britain, 1980-1981

171

Numbers of geese in Britain and Ireland, 1981-1982

172

Ringing by the Wildfowl Trust, 1981

173

Wildfowl Trust avicultura! report, 1981

174-175

Publications, 1981, by or with the assistance of W ildfowl Trust staff and facilities

176