Actually, If these little (?) critters are someplace where they aren't bothering anybody, I don't mind having them around. They eat flies for a living, and there won't be any for a 100 yard radius around the nest. I have a friend that lives in a wooded area, and there is always a hornet nest somewhere in the vicinity. The neighbors can't sit outside for the flies, he has no problem. He leaves them alone, they leave him alone. What's cool is watching one of these guys chase down and grab a fly on the wing.
Granted I wouln't want to be the poor lineperson who has to reset the switch feeding this one.