Tickets are $25 and this event is for adults 21 and over.

"Expert naturalist Paul Keim will lead a conversation over wine and cheese explaining the ecological role that bats and nocturnal insects play in our environment," according to the Prospect Park website. "As the sun goes down, he will lead a walk to look for bat species in flight as they hunt and dive for insects, as well as demonstrate how to distinguish between different species using an echolocation device."