Short morning walk to look for migrants. Thursday, Sept. 5, Jewel Lake, Tilden Park. Meet 7:30 AM in Nature Center parking lot at north end of park. From Hwy 24 in Orinda, go north on Camino Pablo. Turn left on Wildcat Canyon Rd. Stay right at the Brazil Building. At the next main intersection, turn right and pass Lake Anza and the Carousel. Or take Fish Ranch Rd from the Caldecott Tunnel. Turn right at the top onto Grizzly Peak Rd. Turn right and downhill onto South Park Dr and turn left at the bottom onto Wildcat Canyon Rd. Leader: Maury Stern, 925-284-5980. Category 2. Photo: Chestnut-backed Chickadee from Beth Branthaver.