Feral Cats Are An Invasive Species in North America (and elsewhere)
10,000 Birds
JULY 22, 2014
And for rodents and reptiles as well. This is approximated by the size of the animal, but really, this has to be adjusted for depending on modality of killing. In North America, you’ve got Bears at the large end, Cats in the middle, and at the smaller end, the Mustilids. This means that they eat a lot of rodents and birds.
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