Podicipitiform seabird and Sea bird

Podicipitiform seabird noun - Aquatic birds related to the loons.

Sea bird and podicipitiform seabird are semantically related. In some cases you can use "Sea bird" instead a noun phrase "Podicipitiform seabird".

Sea bird noun - A bird that frequents coastal waters and the open ocean: gulls; pelicans; gannets; cormorants; albatrosses; petrels; etc..

Podicipitiform seabird and sea bird are semantically related. Sometimes you can replace phrase "Podicipitiform seabird" with "Sea bird", this phrases are similar.