What do you think a feral cat is killing for?(hint: it is not being fed by a human, hence it is feral)<quoted text>
They kill for food, not fun. Fox are indiginous (sp), ferel cats are not. The wild populations will balance themselves out. Introduce something that doesn't belong and the "balance" is upset.
Fishers were introduced to kill of porcupines and I yet still see a lot of produpines. The fishers eat a lot of cats, tho'.