August 4 – THOUSANDS OF SWALLOWS

At Parker River National Wildlife Refuge, Tree Swallows aggregate in large, pre-migratory, communal roosts prior to migrating to their wintering grounds. They are extremely graceful in flight, making abrupt changes in speed and direction as they feed on the wing, catching insects in their wide mouths. In the fall, their diets change, and the bayberries of Plum Island are a vital food source. To learn more about the swallows of Plum Island, please join Sue. You’ll be thrilled with the sounds and sights of Tree Swallows. Bring your lawn chair with you, and we’ll provide light refreshments.