Are There Buffleheads in Maine?
Yes, Buffleheads are common winter visitors to Maine from fall through spring. These small diving ducks appear throughout the state on coastal waters, bays, and inland lakes. They migrate through Maine during spring and fall, with peak numbers occurring during winter months. Both freshwater and saltwater environments attract these agile, fast-flying ducks to [/wildlife/maine](/wildlife/maine) waters.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 21, 2026.
- 72,944
- GBIF records
- 6
- birding hotspots
Yes, buffleheads are in Maine. Next you'll want:
Yes, Buffleheads are common winter visitors to Maine from fall through spring. These small diving ducks appear throughout the state on coastal waters, bays, and inland lakes. They migrate through Maine during spring and fall, with peak numbers occurring during winter months. Both freshwater and saltwater environments attract these agile, fast-flying ducks to/wildlife/mainewaters.
Where Buffleheads are found in Maine
Throughout Maine, Buffleheads are distributed across both coastal and inland habitats. On the coast, they are particularly common in Casco Bay near Portland, Penobscot Bay near Bangor, and along the Atlantic shoreline from Bar Harbor to Eastport. These sheltered bays and rocky coves provide ideal resting and feeding areas. Inland, Buffleheads frequent major lakes including Sebago Lake in the southwestern region, Moosehead Lake in the north-central areas, and numerous smaller lakes throughout the state. River systems like the Kennebec River, Androscoggin River, and Presumpscot River also hold populations during migration and winter periods. The state's combination of freshwater and saltwater habitats makes Maine an important stopover and wintering area for Buffleheads migrating from breeding grounds in northern Canada and Alaska. Seethe Bufflehead guide for Mainefor more.
Season and timing in Maine
Buffleheads begin appearing in Maine during September and October as they migrate south from northern breeding areas. Numbers increase significantly through November and December as winter residents arrive. January and February typically show the highest concentrations on ice-free waters along the coast and on larger inland lakes. Spring migration begins in March and continues through April, with most Buffleheads departing by May as they return to breeding grounds. A few individuals may remain on coastal waters even into early summer, though breeding does not occur in Maine. The annual cycle is highly dependent on weather patterns and ice formation on freshwater lakes and rivers. Harsh winters with extensive ice cover may cause Buffleheads to concentrate heavily on remaining open coastal waters. Seethe Maine wildlife guidefor more.
How to identify a Bufflehead
Buffleheads are Maine's smallest diving duck, measuring only 13 to 15 inches long. Males are strikingly patterned with a large white patch on the back of the head, creating a distinctive puffy appearance. The rest of the male's head is glossy black, contrasting sharply with white underparts and gray backs. Females are much duller overall, appearing gray-brown with a smaller white patch on the lower face, just behind and below the eye. Both sexes have relatively short necks and small, round heads. In flight, Buffleheads reveal white patches on the wings and a white belly. Their small size and rapid wing beats make them appear almost like water-based ping-pong balls bouncing across the surface. On the water, they sit quite low, with their bodies nearly submerged. Seethe national wildlife hubfor more.
Where sightings concentrate in Maine
Coastal sightings in Maine are most reliable in protected bays and harbors where open water persists through winter. Casco Bay near Portland consistently holds Buffleheads from November through March, often in flocks of 10 to 30 birds. Penobscot Bay near Bangor provides similar opportunities, particularly near Bar Harbor where deeper waters remain ice-free. Along the midcoast, harbors and estuaries from Brunswick to Rockland regularly host wintering flocks. In inland areas,/wildlife/maine/buffleheadpages detail that Sebago Lake near Portland attracts significant numbers during freeze-thaw periods. Moosehead Lake in the interior holds populations when water remains open, particularly in its deeper basins. Smaller lakes throughout western Maine, such as those in Oxford and Cumberland counties, provide consistent viewing locations. Visit local/wildliferesources to find specific boat launch areas and public access points for safe observation.
Typical behavior of Buffleheads
Buffleheads are extremely active and alert diving ducks that spend much of their time on the water. They feed primarily by diving beneath the surface to depths of 10 to 15 feet to search for small fish, aquatic invertebrates, and plant material. Unlike larger diving ducks, Buffleheads are remarkably agile underwater and can change direction quickly to pursue prey. On land, they are awkward and rarely seen ashore, preferring to remain on water. They often form small flocks of 5 to 30 birds, though larger groups may gather in favorable locations. Buffleheads are highly vocal, with males producing a sharp peeping call and females making lower-pitched responses. Their flight is swift and direct, with rapid wing beats creating a distinctive whistling sound. They are generally wary and will dive or fly away when approached, though they may become more tolerant in areas where they are regularly encountered.
Coexistence and safety notes
Buffleheads are protected under the Migratory Bird Treaty Act, making it illegal to harm, capture, or kill them in Maine. Viewing Buffleheads is best done from a distance with binoculars or a camera with a telephoto lens. If you encounter Buffleheads while boating, reduce speed and avoid direct approaches, as the stress of repeated disturbance can force these ducks to waste precious energy needed for survival during harsh winters. Buffleheads present no safety concerns to humans and are too small to threaten any pets or livestock. They are not considered pests and do not compete significantly with human fisheries. Lead fishing sinkers and ammunition pose risks to all diving ducks, including Buffleheads, so fishermen should use non-toxic alternatives. Climate change and habitat loss in both wintering and breeding areas present growing challenges for Bufflehead populations, making winter habitat protection in Maine increasingly important.
Common species people confuse with Buffleheads
Hooded Mergansers are perhaps the most commonly confused species with Buffleheads in Maine. Both are small diving ducks with patterned heads, but Hooded Mergansers are noticeably larger and have thinner bills adapted for catching fish. Male Hooded Mergansers lack the white patch and instead have a large white crest on the head. Barrow's Goldeneyes also resemble Buffleheads superficially, but are larger with a different head shape and a distinctive white crescent between the eye and bill on males. Female Barrow's Goldeneyes look similar to female Buffleheads but are larger with a different facial pattern. Common Goldeneyes are larger still and have rounder heads without the distinctive white patch of a male Bufflehead. Pied-billed Grebes might be confused with Buffleheads at distance, but they have stubby bills and a more rotund body shape. Carefully observing size, head pattern, bill shape, and overall posture helps distinguish Buffleheads from these similar species.
Frequently Asked Questions
Q: Can Buffleheads survive frozen lakes in Maine? A: Buffleheads typically move to coastal waters or larger inland lakes that remain open when smaller lakes freeze. They prefer areas where open water persists, but will relocate if necessary. Q: Do Buffleheads breed in Maine? A: No, Buffleheads breed in northern Canada and Alaska. Maine serves as migration and wintering habitat only. Q: How deep can Buffleheads dive? A: These small ducks typically dive 10 to 15 feet deep when feeding, though they can reach greater depths if necessary. Q: What is the best time to see Buffleheads in Maine? A: December through February offers the best viewing opportunities when large numbers are present on coastal waters and ice-free lakes.
Plan your bufflehead sighting in Maine
72,944 verified bufflehead records have been logged in Maine, most recently in 2026. See the GBIF records.
Where to look in Maine
- Acadia National Park · Wildlife Watching, Birdwatching · Find hotels
- Appalachian National Scenic Trail · Wildlife Watching, Birdwatching · Find hotels
- Katahdin Woods and Waters National Monument · Wildlife Watching, Birdwatching · Find hotels
- Saint Croix Island International Historic Site · Wildlife Watching · Find hotels
- Frances Perkins National Monument · Find hotels
- Maine Acadian Culture · Find hotels
- Monhegan Island · 324 species recorded
- Biddeford Pool · 321 species recorded
- Acadia NP (please use more specific location if possible) · 294 species recorded
- Biddeford Pool--East Point Sanctuary · 289 species recorded
- Wells Reserve at Laudholm · 284 species recorded
- Stratton Island · 281 species recorded
Birding hotspots via eBird (Cornell Lab).
More wildlife in Maine