Every fall, the night sky comes alive with the sound of migration as songbirds join geese, ducks, herons, gulls, shorebirds, and more in an epic exodus that is one of the great natural wonders of the world. For the last several years, Eric Masterson has been operating a nocturnal flight call station from his yard in Hancock, recording and analyzing the calls of migrating birds as they pass unseen overhead. Join him to learn about this fascinating and little-known window into bird migration.

We’ll listen outside with Eric’s recording equipment (weather permitting), then move indoors to discuss what we’ve heard. 7 to 8:15 p.m. at the Harris Center. Please RSVP to Eric Masterson at (603) 525-3394 or by email.