This round goes to the squirrel.

From Critters

Next, I'll try a squirrel baffle like this. (I'm not sure how long it'll keep the squirrels baffled.)

I could have added a baffle earlier, but I wanted to see what would happen without it.

Edit: After talking with Ann, we've decided that (for now) the squirrel(s) amuse us, so we're probably going to leave things as they are.