The Friends of the Freedom Public Library will host “The Common Loon: Ongoing Recovery for a New Hampshire Icon” on May 2 at 6:30 p.m. John Cooley, who is senior biologist for the Loon Preservation Committee in Moultonborough, will make the presentation. Ossipee Lake Alliance annually coordinates the lake’s loon census. Volunteer by contacting Susan Marks at smmarks@www.ossipeelake.org.