Published: 1992-01-01

Front Matter

Contents and editorial

Janet Kear

1-4

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Standard Papers

The population genetics of the Mute Swan Cygnus olor in Ireland

Paul D O'Donoghue, John O'Halloran, Philip J Bacon, Patrick Smiddy, Thomas F Cross

5-11

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The behaviour of a wintering flock of Mute Swans Cygnus olor in southern Ireland

Elizabeth M Keane, John O'Halloran

12-19

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International census of Whooper Swans Cygnus cygnus in Britain, Ireland and Iceland: January 1991

Jeff S Kirby, Eileen C Rees, Oscar J Merne, Arnthor Gardarsson

20-26

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The growth and development of Whooper Swan cygnets Cygnus cygnus

John M. Bowler

27-39

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Division of labour in breeding Trumpeter Swans Cygnus buccinator

Paul Henson, James A Cooper

40-48

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The effect of neck collars on the behaviour, weight and breeding success of Mute Swans Cygnus olor

C J Spray, K Bayes

49-57

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Diseases of swans in captivity

Martin J Brown, Emma Linton, Eileen C Rees

58-69

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Causes of mortality among wild swans in Britain

Martin J Brown, Emma Linton, Eileen C Rees

70-79

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The fall migration of Pacific Flyway Brent Branta bernicla in relation to climatic conditions

C P Dau

80-95

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Gulls associating with flocks of Brent Geese Branta bernicla on farmland

Ron W Summers

96-98

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Constraints on productivity of wild Nene or Hawaiian Geese Branta sandvicensis

Paul C Banko

99-106

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Numbers and distribution of wild geese in the Netherlands, 1984-89, with special reference to weather conditions

Martin Lok, Leo van den Berg, Barwolt Ebbinge, Anton van Haperen, Jules Philippona, Jouke Prop, Arend Timmerman Azn

107-116

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Sexual activity of Pink-footed Geese Answer brachyrhynchus at a staging area in Iceland

H Boyd, A D Fox

117-120

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Behaviour and energy budget of wintering geese in the Lower Rhine area of north Rhine-Westphalia, Germany

J H Mooij

121-138

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Non-breeding Shelduck Tadorna tadorna in the southwest Netherlands: effects of habitat changes on distribution, numbers, moulting sites and food

Peter L Meininger, Harold Snoek

139-151

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Interspecific territoriality and competitive interactions between American Black Ducks Anas rubripes and Mallard A. platyrhynchos

Norman R Seymour

152-155

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Serial monogamy and double brooding in the White-cheeked (Bahama) Pintail Anas bahamensis

Lisa Guminski Sorenson, Bethany L Woodworth, Lore M Ruttan, Frank McKinney

156-159

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Wildfowl at risk, 1992

Andy J Green

160-184

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The mortality of captive flamingos at Slimbridge 1975-89

Martin J Brown, Simon P C Pickering

185-192

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Back Matter

Publications, 1991, by, or with the assistance of, The Wildfowl & Wetlands Trust staff and facilities

Anonymous Anonymous

243-245

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Notice to contributers

Anonymous Anonymous

246-248

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Progress Reports

Status of the Scaly-sided Merganser Mergus squamatus in the far east of Russia

B Hughes, V N Bocharnikov

193-199

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Studies of the behaviour of the White-winged Wood Duck Cairina scutulata in captivity

Andy J Green, Lucy C Webber, Annie Etheridge

200-210

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The epidemiology of avian tuberculosis in White-winged Wood Ducks Cairina scutulata at The Wildfowl and Wetlands Trust, Slimbridge Centre (1976-91)

Ruth L Cromie, Martin J Brown, J L Stanford

211-214

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Vigilance in a flock of semi-tame Greylag Geese Answer answer in response to approaching eagles Haliaeetus albicilla and Aquila chrysaetos

Kurt Kotrschal, Josef Hemetsberger, John Dittami

215-219

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Lead poisoning of Great Flamingos Phoenicopterus ruber

Celia Sánchez, Luis Hernández Saint-Aubin

220-222

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Progress on lead-free shot in the UK, 1991

Myrfyn Owen

223-224

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Bewick's and Whooper Swans Cygnus columbianus bewickii and C. cygnus: the 1991-92 season

Jonathan M Bowler, Eileen C Rees, Linda Butler

225-231

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Progress on bird ringing by the Wildfowl and Wetlands Trust during 1991

Carl R Mitchell

232-234

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Waterfowl counts in the UK 1990-91

Jo R Ferns, Jeff S Kirby

235-240

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Progress in aviculture by the Wildfowl and Wetlands Trust during 1991

Nigel R Hewston

241-242

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