[Sad, but he's still not one to accept magic readily, so...]

Most animals, actually. I've got a friend, Fergus, who's a fox, he has friends that are a squirrel, Sid, and a rat, Big Fee, my neighbor Constantine is a cat, Pearl the Police Horse, I'm...not actually sure if I've heard a bird actually talk, but they can at least understand us, and I definitely remember that pigeon beat-boxing...

The point is, definitely not just dogs.