My M. Coon kitten (8 months) makes a variety of noises when he is getting ready to go in the litter-box. First a kind of a cross between a cooing & meow, then several noises that sound kind of like 'backwards' meows. Kind of a 'errr-woem' sound. He makes those same sounds when he comes into the room you're in or when he is about to climb the mini-palm tree in the living room, etc. I guess he has to anounce to whoever is around what he is up to...........