A coastal gull whose breeding adults have a black head, red bill, and narrow white eye crescents.
Breeding adults have a black head, red bill, and thin white eye crescents. Nonbreeding adults have a mostly white head with dark smudging behind the eye.
It lives along coasts, salt marshes, and bays, and eats varied food including fish, crabs, and insects.
An extinction-risk assessment has not been added yet.