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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

He also had tigers, cougars, and some other animals. Also, feral Cats on islands seem to be a serious problem, causing the extirpation of some indigenous species. A hungry feral Cat in Minnesota goes and finds new prey in an area it previously had not explored, leaving the last few of one or another bird species alone for a while.