Oh our old barn cat would come out of the barn door carrying a dead rat so large she couldn't hold it off the ground.
Yeah, my cat's literally dug up moles before. I know NYC has mutant rats, but I'm sure it's not difficult to find a cat adventurous enough.
I have seen a junivile cat do the same she was hardly out of kittenhood and took a rat bigger than her.
Yeah, at the right age, a juvenile cat is a pound and a half of death, and it isn't shy about showing you. I think later on in their lives cats are a bit more secretive, especially about prey they want to eat.
If you don't feed a cat much, it'll go after just about anything rodent-like that it thinks it can sink its teeth into.
[Edit: also bird-like, which is why a number of eco-friendly people aren't too fond of free range domestic cats in many different parts of the world]
Our old barncat just hunted the ratlings. Tenderer meat, you know.