No reservations needed! We’ll search this Rockville park for sparrows and southbound migrants. The paths are either paved or gravel but there is elevation gain because the park is situated on a slope. There are no bathroom facilities. Distance: 1 to 2 miles, time about 2 hours. Meet in the parking lot of Redgate Park, 14500 Avery Rd, Rockville, MD 20853.  Ride-on buses 48 and 49 run on Sundays and stop on the corner of Norbeck and Avery roads. Walk cancelled in the event of pouring rain. LEADERS: Cheryl Hogue, [email protected], and Lisa Norwalk, [email protected].