Walk Broad Meadow Brook's trails in search of birds and other springtime happenings. Our destination is Heron Pond to observe the nesting Great Blue Herons, Tree Swallows, and other wildlife at this beautiful spot. Along the way, we'll make note of spring wildflowers, migrating warblers, and other signs of the season. All proceeds from this program support Mass Audubon's Bird-a-Thon.