Comment by BostonFern

I've spent a lot of time living around wild cats, and I've yet to see a cat hunt a bird. Of course cats do hunt birds, but I'm very curious about how these figures are reached, in this case, how reliable those isotope studies are.

Incidentally, here's a critical take of a study on the amount of wildlife cats kill that made headlines in 2013 cited in the article, also by NPR: https://www.npr.org/sections/13.7/2013/02/03/170851048/do-we...