BANC Sanctuary, 301 Railroad Mills Road, Victor. Following a pot luck dinner, naturalists Bill O'Neil and Martha Zettel will present a program about night creatures which vocalize in summer, such as bats and singing insects. After the talk, there will be a short guided walk in the sanctuary so that we can hear them ourselves. Bring your place settings, a dish to pass, and a flashlight for the walk. Wear clothing that will protect you from mosquitoes.