Birding Loop Trail

Cobscook Bay State Park sits at the head of the Bay of Fundy system in far Downeast Maine, where the world's highest tidal range — reaching 25 feet at spring tides — creates one of the most dynamic and biologically productive coastal ecosystems in North America. The Birding Loop Trail circuits the park's interior through spruce-fir forest and along tidal cove edges, offering exceptional wildlife viewing throughout the year. Bald eagles nest within the park boundaries and are reliably visible year-round, often perched in the large white pines overlooking tidal coves where they hunt for stranded fish as the tide recedes. The exposed mudflats during low tide attract enormous concentrations of shorebirds during the southbound fall migration in July through September, including semipalmated sandpipers, dunlin, and least sandpipers sometimes numbering in the thousands. Osprey, great blue heron, and belted kingfisher work the tidal channels throughout the summer season. The bay's cold, nutrient-rich waters also attract harbor porpoise, harbor seals, and occasionally minke whales visible from the shoreline. This is one of the premier birding destinations in all of Maine, regularly included on American Birding Association notable site lists.