HAPPENIN’ OTSEGO for THURSDAY, SEPTEMBER 20 Tour Our Urban Forest TREES OF COOPERSTOWN – 5:30 p.m. Tour Cooperstown with Otsego County Conservation Association, learn benefits of street trees, threats to urban forests, basics of tree anatomy, identification. Free, open to public. Pre-registration preferred. Meet at Pioneer Park, Main St., Cooperstown. 607-547-4488 or visit occainfo.org/calendar/the-trees-of-cooperstown/ GARDEN CLUB – 6:30 p.m. Public meeting hosts Don Urtz presenting photographs of work done by the club over the years. Free, refreshments provided. Richfield Springs Village Library,…