At a Glance

One of the largest seabirds of the North Atlantic, the gannet is spectacular as it plunges into the sea in pursuit of fish. With a spear-like bill and spiky tail, it looks 'pointed at both ends.' Nesting colonies are on northern sea cliffs; one at Bonaventure Island, Quebec, has become a famous tourist destination. In winter off southern coastlines, the gleaming white adults may be outnumbered by brown and patchy immatures; it takes four years for gannets to attain full adult plumage.
Boobies and Gannets, Gull-like Birds
Low Concern
Coasts and Shorelines, Lakes, Ponds, and Rivers, Open Ocean
Eastern Canada, Florida, Mid Atlantic, New England, Southeast, Texas
Direct Flight, Flap/Glide, Soaring

Range & Identification

Migration & Range Maps

Migrates offshore southward along Atlantic Coast, some going around southern end of Florida and along Gulf Coast to Texas. Immatures tend to winter farther south than adults. Many (especially adults) are present in winter far offshore as far north as New England. Immatures and nonbreeders may remain south of breeding grounds in summer.


35-40" (89-102 cm). Huge size, long pointed wings, spearlike bill, pointed tail. Adult is white with black wingtips. Juvenile all gray-brown with white speckles at first, gradually changing to adult plumage over three or four years.
About the size of a Heron
Black, Brown, Gray, White, Yellow
Wing Shape
Long, Pointed, Swept, Tapered
Tail Shape
Pointed, Wedge-shaped

Songs and Calls

Guttural croak or grunt, heard only on breeding islands.
Call Pattern
Flat, Undulating
Call Type
Chatter, Raucous


Oceanic; often well offshore. Breeds colonially on sea cliffs. Forages at sea, from fairly close inshore to out of sight of land, but mostly over waters of continental shelf. In cold-water areas in summer, but winters to edge of tropics. Nests on cliffs and ledges of islands, sometimes on steep protected cliffs of mainland.



One. Pale blue to white, becoming nest-stained. Incubation is by both sexes, 42-46 days.


Both parents feed young, by regurgitation. Age at first flight 84-97 days. Only one young raised per year.

Feeding Behavior

Forages by plunging headfirst into water, sometimes from more than 100' above surface. Also forages while swimming, submerging head to peer below surface and then diving and swimming underwater. May take food at surface, or may steal food from other birds.


Mainly fish. Feeds mostly on small fish (1-12" in length) of types that live in dense schools, including herring, sand lance, cod, pollack, menhaden. Also may eat some squid. Sometimes scavenges for scraps and offal around fishing boats.


Usually first breeds at age of 5-6 years, and may mate for life. Breeds in tightly packed colonies, with much competition for prime nest sites. Male claims nest territory and displays to attract mate, with exaggerated sideways shaking of head. Mated pairs greet each other by standing face to face, wings out, knocking bills together and bowing. Nest: Site is on ledge or flat ground, often within 2-3 feet of other nesting gannets. Nest (built mostly by male) is pile of grass, seaweed, dirt, feathers, compacted and held together by droppings, used by same pair for years and gradually building up to tall mound.

Climate Vulnerability

Conservation Status

Population declined drastically during 19th century owing to taking of eggs and slaughter of adults; this occurred over much of range, but especially off eastern Canada. With protection, populations began to recover early in 20th century, with increase apparently continuing to present day.

Climate Map

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect the range of the Northern Gannet. Learn even more in our Audubon’s Survival By Degrees project.

Climate Threats Facing the Northern Gannet

Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.

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