Meet at Forbidden Drive and Bells Mill Road Ruth Pfeffer will host an informative, fun walk and talk about our avian friends that reside, nest, or migrate through our beloved Wissahickon. There will be an emphasis on Warbler and other song birds that are returning from their southern wintering range. Loner binoculars will be available. Dress for the weather and wear comfortable walking shoes. A half mile hike to Thomas Mill Covered Bridge continues with an outdoor sketching session. Whether…