 Our carpenter bees, and I allow the carpenter bees to drill the holes and put their eggs in there. When they start to hatch out, or I turn into adults and fall out of there to warm up, the cicadas know when that's happening, or the cicadas, the cardinals know when that's happening, and they're waiting for them to come out. And sure enough, I watched yesterday, was one sitting on the deck, and all of a sudden this thing fell out, and it picked it up and ate it.