Faces of the Moon, Peabody International Year of Astronomy program with Robert Crelin, 7 p.m. Tuesday, Leitner Family Observatory and Planetarium at Yale, 355 Prospect St. New Haven, (203) 432-5050, www.peabody.yale.edu. Crelin will sign copies of his children's book, "Faces of the Moon." Population Limitations in Migrants, with Ian Newton, New Haven Bird Club meeting, 7:30 p.m. Thursday, Jones Auditorium, Connecticut Agricultural Experiment Station, 123 Huntington St., New Haven, (203) 787-1643, www.newhavenbirdclub.org.
Jared Eliot Preserve, Women & Family Life Center hike with Guilford Land Conservation Trust president Sarah Williams, 9:30 a.m. Thursday, meet at Mulberry Farms Road, Guilford, (203) 458-6699, www.womenandfamilylifecenter.org for details.