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

10,000 Birds

And for rodents and reptiles as well. This almost certainly can be argued to be true just on the basis of logic, because feral Cats are proficient hunters and are entirely out of ecological place. Dogs are similarly dispersed across size ranges, with Foxes, Coyotes, and Wolves taking prey across different parts of the size range.

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How many birds are killed by windmills and other green energy projects?

10,000 Birds

A recent meta study ( The impact of free-ranging domestic cats on wildlife of the United States ) that applied strict inclusion criteria and some fancy statistics estimates that 2.4 Notably, this is a vey small number compared to the number of rodents killed by the same cats.

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