A few years ago, I discovered bats in the attic. A whole family nesting in the rafters. After consulting the local critter specialist, I learned that evicting a bat family is a bit more involved than eradicating carpenter ants. You can just exterminate them. Nor can you trap them and take them to someone else’s neighborhood. Instead, when the young are able to fly, you fit their entry point with a one-way door. Exit only. That way, they get locked out and (one hopes) don’t get back in some other way. Fortunately … [read more at The 21st-Century Scop].