This book looks at the world's naturalised (successfully introduced)  species of bird. Many species have been introduced to countries outside  their natural range by people, either deliberately or accidentally,  with varied consequences for both those species themselves and the  native fauna of their 'new' homes. In Britain, the introduced Canada  Goose has quickly become ubiquitous at every lake and riverside, while  the Golden Pheasant remains a scarce and unobtrusive inhabitant of a  few scattered, remote woodlands. The House Sparrow and Common Starling,  both in decline over parts of their native range, are thriving in a  naturalised state in North America and elsewhere in the world.  Naturalised populations of Mallard in various parts of the world are  threatening a total of seven other duck species with extinction through  hybridisation. This book discusses each species in turn, describing how, why, when  and where its introduction took place, how it became established, and  the ecological and economic impacts its presence has had in the country  or countries it is naturalised in.  Each account has a map, showing  natural and introduced range, and there is a wealth of beautiful line  drawings of the species concerned.

Naturalised Birds of the World (Poyser Monographs) PDF

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