Birds of Prime Hook program, 1 to 2 p.m., Prime Hook NWR multipurpose room, 12322 Turkle Pond Rd., Milton. Guided video tour of refuge trails & birds found there, home to or migratory stop for up to 347 species across 10,000 acres, discussion on identification tips, registration required. To register go to tinyurl.com/hrnubbk9.