Whicket the hunter

I was quietly working on some statistics homework, when I noticed my Whicket cat slinking near the sliding patio door. This is what she was after:



Now the question is, is this a mouse or a rat? And WHAT is it doing on my balcony!! I haven't filled the bird (aka squirrel) feeder in months!

The difference between mice and rats is on this link. And you can take a knowledge quiz here.

Recently Wookie had drug this little guy INTO the house: