This is actually the second time I’ve found a Big Brown Bat (Eptisicus fuscus) at the NRC, but this is the first dead one. How a bat hits a building, I don’t know.
Bird-Window Collisions at OK State
"Birds of wide open prairies and damp, evergreen forests have taken their final breath on the sidewalk of a modern building on our urban campus." ~ T. O'Connell, 2019
Bird-Window Collisions at OK State 