Outdoor cats hunt and kill a ton of animals, especially birds (estimated as 1.4-3.7 billion in the US, annually). Being outdoors also exposes cats to poisoned r

Outdoor cats hunt and kill a ton of animals, especially birds (estimated as 1.4-3.7 billion in the US, annually). Being outdoors also exposes cats to poisoned rodents, cars, raccoons, in short, lots of things that can kill or injure them.