Each year, on the third Saturday in October, The Big Question brings people together with expert guides to grapple with a question. In 2017, the question we asked ourselves was ‘How can we know?’ One of the most exciting things about asking this question was getting to talk with all sorts of people about how this crazy big question arises for them in the work that they do. In preparing for 2018's big question, MHC program officer Meghan Reedy talked birds and citizen science with Maine Audubon’s Doug Hitchcox.