Types of Puffin in Massachusetts

The Atlantic Puffin is the sole puffin species found in Massachusetts. Historically, puffins nested on islands off the coast, but today they are primarily seen during migration periods as they travel between breeding colonies in the North Atlantic and wintering grounds. iNaturalist observations in Massachusetts total about 10 verified sightings, most occurring during spring migration in March and May.

Atlantic Puffins are unmistakable once you know what to look for. They measure about 10 inches long with chunky, rounded bodies. Breeding birds (spring and early summer) show a distinctive black back, white face, and colorful orange-yellow beak that is larger and more ornate than any other alcid. The face pattern includes a dark eye with a light ring around it and white cheeks. Nonbreeding birds lose some color and show a dusky face, but the stocky shape and small size remain diagnostic even in winter plumage.

Puffins are much smaller and rounder than cormorants or loons that share Massachusetts waters. Unlike auks or murres, puffins have a much larger, heavier bill that bulges visibly when they molt into breeding plumage. The striking white face of a breeding puffin cannot be confused with the dark heads of most other diving seabirds. In poor light or from a distance, focus on the compact size, stocky silhouette, and relatively large head of the bird. Winter birds are drabber but still show the rounded shape and thick build.

Atlantic Puffins wear their brightest plumage during breeding season, roughly March through July. Peak visibility in Massachusetts falls in March and May as migrating puffins pass through coastal waters on their way to breeding grounds farther north. During these months, birds display full breeding plumage with bright orange bills, white faces, and black upperparts. By late summer and fall, they molt into duller nonbreeding plumage and are harder to identify from a distance, though knowledgeable observers can still find them in October and early winter if conditions allow.

Atlantic Puffins do not breed in Massachusetts today. Historical records suggest they nested on coastal islands centuries ago, but breeding colonies disappeared over the past two centuries due to hunting and habitat loss. Today, the closest breeding colonies are located in eastern Canada and around Iceland and the British Isles. Massachusetts birders see puffins only during migration when birds move through Atlantic waters, making spring trips by boat your best chance to encounter them.

Puffins have one of the most distinctive bills in the bird world. The beak is laterally compressed (flattened side to side), blunt at the tip, and decorated with grooves that become more pronounced in breeding season. Breeding birds develop an orange-yellow bill with red at the base and a blue-gray patch at the face connection. No other Massachusetts seabird has this combination of features. Nonbreeding puffins retain the basic bill shape but lose the bright orange coloring, reverting to a more subdued pale orange or tan. The bill shape and relative size stay consistent year-round and are the single best identification clue when plumage is not visible.

Yes, Atlantic Puffins are superb divers. They use their wings to propel themselves underwater much like penguins, hunting for small fish at depths of 30 to 60 feet, though they can go deeper when pursuing prey. You may see puffins resting on the water surface before diving, or watch them pop up after a dive with small fish held crosswise in their bills. This diving behavior and their agility in the water make them fascinating to observe during whale-watching and seabird tours.

Atlantic Puffins are stocky birds measuring about 10 to 11 inches from tip of bill to tail. They are noticeably larger than murrelets or dovekies but smaller than razorbills and most gulls. Their heavy, rotund body gives them a blocky appearance that distinguishes them instantly from the sleeker murres and auks that also inhabit Massachusetts waters. When you see a small alcid with an unusually large head and thick profile, it is likely a puffin.

Young Atlantic Puffins take about four years to acquire full adult breeding plumage. First-year birds are mostly dark gray to blackish with pale underparts and lack the vivid face pattern. Subadult birds gradually show more white on the face and begin developing the characteristic puffin pattern, but never reach the vibrant breeding plumage of mature adults until they are nearly adult-sized. Most puffins observed in Massachusetts are mature birds in breeding plumage, but if you see a smaller, darker alcid with puffin-like characteristics, it could be a young bird.

Atlantic Puffins sit high in the water with their heads held upright and their stocky bodies appearing almost round from a distance. Unlike cormorants or other diving birds that sit lower in the water to reduce buoyancy, puffins ride relatively high. When resting, they may tuck their heads down slightly but maintain a compact, chunky silhouette. In flight, their proportionally short, rounded wings beat rapidly in a whirring pattern, and their posture remains compact and robust. This overall roundness is a key field mark visible even from boats at moderate distances.