@prometheus Cardinals are Tanagers, which is the other bird I've seen at the hives. Tanagers grab bees and will smash their heads on branches until they fall apart, and then eat them.
@prometheus I've found bee body parts on top of the hives in previous years, and a couple years ago I saw a bird swooping around the entrance, but never actually seen a bird attacking the entrance.
@prometheus I find it fun to uncover these weird and bad things in old houses, though. Feels great to replace or fix something that you won't have to fix again. #fingersCrossed