The Whooper Swan
The Whooper Swan has the most extensive range of all the world's seven swan species, and to people in many nations it is the archetypical swan species. The species is also strongly migratory, and the annual appearances of bulging" flocks of these beautiful white birds herald seasonal change and have inspired numerus myths and tales.
Taking an in-depth look at the Whooper Swan, this book investigates its biology, migratory habits, courtship and breeding behaviour and its role in the folklore and legend of the many countries where it occurs."
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CHAPTER 9 Nonbreeding Whooper Swans
CHAPTER 10 Movements and migration
CHAPTER 11 In sickness and in health
APPENDIX 1 Scientific names of bird and mammal species appearing in the text
APPENDIX 2a Swan Biometrics
APPENDIX 2b Whooper Swan Biometrics
APPENDIX 3 Foods Eaten by Whooper Swans
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adults appears April aquatic arrival autumn behaviour Bewick’s Swans birds Brazil bred breeders breeding pairs breeding range breeding season Britain brood Caerlaverock clutch coastal cygnets decline densities early east eelgrass eggs estimated Estonia families feeding female Figure Finland fledging flight foraging Gardarsson & Skarphedinsson geese grass grazing Haapanen habitat head-up Hokkaido ice-free Iceland increase incubation January Japan Krechmar lakes large numbers late Laubek male Mathiasson moult Mute Swan Myvatn neck Neslandavik nest non-breeders northern northwest numbers numbers of Whoopers Ob River observed occur October Ohtonen Ouse Washes Owen parents perhaps period pre-flight presumably proportion recorded region River roosting Russia Sakhalin Scotland significant small flocks small numbers southern species spring migration stubble summer Sweden taiga territory Trumpeter Swan tundra Tundra Swan typically waterfowl weather Welney western wetlands whereas Whistling Swan Whooper Swan Wildfowl wings wintering grounds wintering population young