1. (noun) a bird that frequents coastal waters and the open ocean: gulls; pelicans; gannets; cormorants; albatrosses; petrels; etc.

• sea bird
• seafowl

1. (noun) a bird that frequents coastal waters and the open ocean: gulls; pelicans; gannets; cormorants; albatrosses; petrels; etc.

• aquatic bird

1. (noun) a bird that frequents coastal waters and the open ocean: gulls; pelicans; gannets; cormorants; albatrosses; petrels; etc.

• auk
• coastal diving bird
• gaviiform seabird
• oceanic bird
• pelagic bird
• pelecaniform seabird
• podicipitiform seabird
• puffin
• sphenisciform seabird