Not a bird or a mouse, kittens!
Let one of the cats in today, it had something in it's mouth that I didn't pay attention to, figuring it had brought home another little animal to play with in the garage, so I just watched her go into her "spot" in the garage and thought nothing of it.
Later I see her walking up the driveway with something else, bringing it right into the garage again.
I go in the garage, and she's laying in her spot nursing 4 kittens!
I'm either becoming unobservant, or my eyesight is getting bad, cause I never noticed. Hell, hope my kids arn't out having kittens without me noticing.
3 of them are completely black, like the mother and suspected father, and one is completely white with light grey highlights on the head and ears, with faint grey stripes barely visible on the body.