Great Black‑backed Gull at Plum Island, Massachusetts

A Great Black‑backed Gull stands on a rock at Plum Island, MA, looking out over the water with the sand dunes behind it. Its bright white head and big yellow beak stand out against its dark wings.

This gull is the largest gull species in the world - adults can have a wingspan of over 5 feet. They can live more than 20 years in the wild and are powerful fliers that patrol beaches, jetties, and marshes. At Plum Island, MA, they’re often seen standing on rocks like this, keeping an eye out for fish, crabs, and sometimes even other birds. Despite their calm look, they’re some of the top predators along the coast.