For everything there is a season, and this is the season when terns are nesting and hatching. Rich Downs, founder of the White Tern Citizen Science group, will be leading a guided tour of terns and the trees they’re in on the UHM campus on Sunday, September 23, from 9 to 10:30 a.m. Participants should meet in front of Sinclair Library. There will be sleek white parents and their fuzzy babies to check out, and you’ll also have the opportunity to join Hui Manu-o-Kū and volunteer to do citizen science observations to monitor terns, or manu-o-Kū, which are the official bird of Honolulu. Photo by citizen scientist Melody Bentz.