A small dark goose specialized for marine eelgrass. Atlantic and Pacific subspecies migrate over 5,000 km annually between Arctic breeding grounds and US wintering coasts.

§ Quick facts

SizeBody 55–150 cm (22–60 in); wingspan 100–250 cm
Weight1.5–14 kg
LifespanWild 10–30 years
OrderAnseriformes
FamilyAnatidae

§ Encyclopedia

The brant or brent goose is a small goose of the genus Branta. There are three subspecies, all of which winter along temperate-zone sea-coasts and breed on the high-Arctic tundra.

Source: Wikipedia — Brant (goose) Licensed under CC BY-SA 4.0

§ Identification

Field marks. Small black-headed and black-necked goose with a small white necklace patch, dark chest, and a white rear. No white cheek patch (unlike Canada Goose).

Similar species. Canada and Cackling geese have a white cheek patch and brown body; Brant is smaller, darker, and strictly coastal.

Voice. A soft, rolling, guttural 'cr-r-ronk' given by flocks.

§ Diet & behavior

Diet. Aquatic plants, grasses, grain.

Behavior. A small, dark sea goose that grazes on eelgrass and sea lettuce in shallow coastal bays; migrates in long undulating lines low over the water rather than in high V's.

§ Range

Arctic coasts; winters along US coasts

§ Habitat

Coastal mudflats, estuaries, salt marshes

§ Threats

Eelgrass die-off events, climate-driven Arctic warming, coastal habitat loss.

§ Conservation status

According to the IUCN Red List, the brant is currently classified as Least Concern.

§ What helps

Support eelgrass restoration. Reduce coastal habitat degradation. Maintain Arctic ecosystems.

Support our work More ways to help

§ Further reading

§ Sources cited

  • Cornell Lab of Ornithology — All About Birds
  • National Audubon Society
  • iNaturalist
  • IUCN Red List