Carpool from the library at 8 a.m., Saturday, Feb. 9, to the southern edge of the Tucson Mountains, where birding expert Jeff Babson leads a walk to search for rufous-winged sparrows, raptors and songbirds; free. The group returns at 10 a.m. Reservations are required. Call 615-7855, or email eeducation@pima.gov for reservations and more information.