A cat gave birth to five kittens in my neighbour's backyard a few weeks ago. I started noticing two or three of the kittens in my backyard last week, and now, it seems like the whole clan has moved into my space. I didn't mind at first because it was really cute but they're getting to be a nuisance and I need to get rid of them. For starters, I have a dog who uses the backyard so I can't have them wandering around back there. Secondly, I've been finding parts of dead birds around (ewww) and I'm tired of having to clean that up. Short of rounding them all up and hauling them off to the humane society, how I can get rid of them?