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

10,000 Birds

I once knew a guy who kept and raised cats. This is approximated by the size of the animal, but really, this has to be adjusted for depending on modality of killing. And for thousands of years the lizards, rodents, and birds of North America adapted to Fishers, Badgers, Wolverines, Ermines, etc. Unless we put them there.