A bird walk will be held at 6 a.m. Saturday, Sept. 6, at Plum Island, Lewiston. For more information, call 782-5238. On Wednesday, Sept. 10, a guided bird walk will begin at 8:20 a.m. along the papermill and Ricker Farm trails in Lisbon. For details, call 933-2266. Also on Sept. 6, a program on landscaping for wildlife will be offered from 11 a.m. to 2 p.m. at the Maine Wildlife Park on Route 26 in Gray. For more information, call 287-3303.