Andrew Vitz, state ornithologist for the Massachusetts Division of Fisheries and Wildlife, will present “The History and Conservation of the Common Loon in Massachusetts” on Tuesday, Nov. 1, from 6:30-7:30 p.m. at the Hopkinton Public Library. The focus will be on the nesting loons that arrived at Lake Whiteball in 2019, including photos by local residents who participated in the loons’ banding last year. This program, co-sponsored by Friends of Whitehall and the Hopkinton Public Library is free and open to all ages. No advance registration is necessary. For more information, visit friendsofwhitehall.org.