Henry David Thoreau described a loon's call as, "Perhaps the wildest sound that is ever heard here, making the woods ring far and wide." Join us for a presentation about loons inspired by Thoreau's admiration for them. DCR Wildlife Biologist Jillian Whitney and Loon Preservation Committee Outreach Coordinator/Biologist Caroline Hughes will discuss common loons, their distribution and presence in Massachusetts--including at Walden--and how can protect them. This program is free; but regular parking fees apply. Parking is first-come, first-served, and on sunny days, Walden Pond parking lot often fills up, and the park closes to incoming visitors. Please check DCR Park Alerts for closures at mass.gov/parkalerts or call 978-369-3254 for any closure warnings.