There are these boxes all over campus. I have heard people call them “bat boxes.”
Now, I am not a biologist, but every now and then, when I am at “work” with the human female and really, truly bored, I will leaf through her books. I do not know much about Chiroptera (bats,) but I believe that they prefer darker, more secluded, more enclosed roosting boxes. I also doubt that they line their roosts with reading material, though I can see that newspaper would be useful for catching all the guano.