Bat

 Last year, while I was working at the Farmers' Market online store, I was standing at the loading dock waiting for the next customer to come to pick up their order when I some something moving across the alley. I went to investigate and it was a bat. It didn't seem to be in great condition, but it got all the way across the alley and climbed up the wall of the building next to me. I managed to take this picture before losing track of it.