Medium-sized black-and-white seabird with a thin and sharp bill. Note red legs.
Nonbreeding birds in the high arctic (mandtii subspecies) are whiter overall than nonbreeding birds in the Atlantic.
Forages by diving, using its wings to propel itself underwater. Catches fish, worms, and other prey from near the bottom.
Potbellied black seabird with white underwings bordered in black.
Nonbreeding birds have whitish heads and underparts.
- Medium-sized to small waterbird.
- Thin, straight bill.
- Large white wing patches.
- Bright red feet.
- Relatively long, thick neck.
- All black with white wing patches in summer.
- Mostly white with dusky back in winter.
Immature DescriptionSimilar to nonbreeding adult, but with more mottling on head and neck, and black markings breaking the white wing patches.
- Both Sexes
- Length: 11.8-12.6 in (30-32 cm)
- Weight: 11.3-17.1 oz (320-485 g)
- Wingspan: 20.5-22.8 in (52-58 cm)
Don't miss a thing! Join our email list
The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation.