Learn the identifying marks and behaviors of our feathered year-round residents and seasonal visitors while assisting in compiling an annual checklist of the preserve’s birds. This hike is designed to take advantage of all levels of birding experience. Binoculars and bird guides are available. 8 to 10 a.m. Free; advance registration required. Weedon Island Preserve, 1800 Weedon Drive NE, St. Petersburg. (727) 453-6500; www.weedonislandpreserve.org.