NATURALISED BIRDS OF THE WORLD. By Christopher Lever. Illustrations by Robert Gillmor.

(1987) 2005 revised edition. 8vo (162 x 240mm). Pp352. B/w illustrations by Robert Gillmor, fifty-page bibliography. Orange-brown cloth, spine titled in gilt.

"After habitat loss, the impact of naturalised exotics is the single most important cause of extinction in native species throughout the world. ...Naturalised Birds of the World, which revises and updates Christopher Lever's 1987 book of the same name, describes when, where, how, and by whom the world's various naturalised birds were introduced to places outside their natural ranges, and discusses the economic and ecological impacts each species has had in its naturalised range." Appendices give "naturalised birds that have had a negative impact on native birds included in the World Conservation Union Red List of Threatened Animals", and "continents and oceanic islands on which alien birds are naturalised, and faunal regions that are the origin of naturalised birds." The book concludes with a fifty-page bibliography.