Feral Cats Are An Invasive Species in North America (and elsewhere)
10,000 Birds
JULY 22, 2014
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. You can make a similar map for the small carnivores, the Mustelids, such as minks, ermines, otters, etc. We estimate that free-ranging domestic cats kill 1.4–3.7
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