Sorry I didn't see this sooner.....

At the stables where I keep my horse are 3 "feral" if you can call them that (they won't come in a house but love people) cats. 2 females and 1 male (all neutered).

The females catch lots of mice/rats (and birds grrr) but the male (and ones before him) are lazy and eat what they don't.

I have been told by the yard owner that females do more hunting and males are lazier.