Bat population in trouble!

[sgtiger]

Have you tried peanut butter in the bat houses? At least, that's what a couple of natural gardeners in the PNW recommended to me a long time ago when I helped with community green projects. We helped local elementary kids build bat houses for public spaces when they were learning about bats for an Earth club project during high school. I don't know if different types of bats from different regions would have a preference for something else though.