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Are there so many birds that cats don’t matter?

10,000 Birds

I had noted that if you took a quick look around you’d think there were a lot of birds and very few mammals. Of course, a lot of the mammals would be hiding. If cats displace ferrets, then that probably means that birds are getting hit harder than rodents, and among birds, adult birds are getting hit harder than eggs or hatchlings.

Cats 185
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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

There is not a wild cat, such as the Wildcat, in North America, at that lower end of the size range for cats. Dogs are similarly dispersed across size ranges, with Foxes, Coyotes, and Wolves taking prey across different parts of the size range. We estimate that free-ranging domestic cats kill 1.4–3.7 billion birds and 6.9–20.7