Seabird (noun)

1. A bird that lives and breeds near the sea.
2. A bird that feeds mainly on marine organisms.

Origin:

Old english sēafugol, from sēafugol ("sea-fowl"), from sēa ("sea") + fugol ("bir.d")

Examples:

1. Puffins, guillemots, and razorbills are all seabirds.
2. Seabirds such as albatrosses and petrels can fly for hours without stopping.
3. The seabird colony on the island is home to thousands of nesting birds.
4. Seabirds are a vital part of the marine ecosystem, helping to control fish and invertebrate populations.
5. The seabirds were circling overhead, their calls filling the air.