So now you're just making things up. If the litter is a problem, DON'T HAVE CATS. Cats are bred for us. They are a problem we created.

Injured birds? Predators that'd actually eat them would kill them. Rats? No one has a cat as a ratter these days. We don't live on farms and cats can't get to where rats live in urban areas. In suburban, rats are a much lessa. problem.

These are made up justifications for doing something that has no benefit.