Saturday, Feb. 21, 8:30-10:30 a.m.– Join the Atlanta Audubon Society for a guided bird walk along Overlook Park trail. The winter months offer opportunities to see open water duck species and eagles. Binoculars available to borrow. Free. For those ages 6 and up. Morgan Falls Overlook Park, 200 Morgan Falls Rd., Sandy Springs, 30350. For additional information, call 770-730-5600. Pre-registration requested at: www.sandyspringsga.gov/registration.