The J.N. “Ding” Darling National Wildlife Refuge on Sanibel Island is getting set for next month’s 25th annual “Ding” Darling Days celebration. Among the events, Muppeteer Jim Henson’s daughter, Heather Henson, with Ibex Puppetry, is back for encore performances featuring life-size endangered animal puppets. The weeklong event, which runs Oct. 19-25, features refuge tours, live wildlife presentations, archery clinics, a butterfly house and kids’ nature crafts. Also on tap: free and discounted birding, biking, kayaking, paddleboarding, sea life boating and interpretive presentations will fill the week between the two events.