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

10,000 Birds

So you can describe the carnivore landscape for Cats by plotting the canine length, and you’ll see that male and female versions of the three or four Cats in a region take up all of the size-space for Cats, and correspondingly, all of the Cat-accessible prey. On an island, the feral Cat eats all of those birds.