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( Sparrow)
Passer
Petronia
Carpospiza
Montifringilla The Old World true sparrows are found indigenously in Europe, Africa and Asia. In Australia and the Americas, early settlers imported some species which quickly naturalised, particularly in urban and degraded areas. House Sparrows, for example, are now found throughout North America, in every state of Australia except Western Australia, and over much of the heavily populated parts of South America. Some authorities also classify the closely related estrildid finches of the equatorial regions and Australasia as members of the Passeridae. Like the true sparrows, the estrildid finches are small, gregarious and often colonial seed-eaters with short, thick, but pointed bills. They are broadly similar in structure and habits, but tend to be very colourful and vary greatly in their plumage. About 140 species are native to the old world tropics and Australasia. Most taxonomic schemes list the estrildid finches as the separate family Estrildidae, leaving just the true sparrows in Passeridae. The Hedge Sparrow or Dunnock (Prunella modularis) is similarly unrelated. It is a sparrow in name only, a relic of the old practice of calling any small bird a "sparrow".
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