Great Crested Tern
NameGreat Crested Tern
Common NameGreat Crested Tern
Scientific NameThalasseus bergii
FamilyLaridae
Wingspan (cm)112.5
Length (cm)48
Weight (g)325
Plumage DetailsAdults have a black crest that extends from the forehead to the nape, contrasting with a white face and underparts. The upperparts (back and wings) are pale grey, and the primary flight feathers are darker. The bill is stout and yellow, sometimes with an orange tinge, and the legs and feet are black.
Vocalization / CallKnown for a harsh, grating 'karrack' or 'kirrick' call, often repeated. It also produces a softer 'kew-kew-kew' sound, especially during courtship or when interacting with chicks.
Primary Dietpiscivore
Primary Habitatscoastal, wetland
Conservation Statusleast-concern
Geographic RangeWidespread across the tropical and subtropical coasts of the Old World, including Africa, Asia, Australia, and Oceania. It is found along the coasts of the Indian Ocean, western Pacific Ocean, and parts of the Atlantic Ocean (e.g., West Africa).
Identifying Featuresblack shaggy crest, large yellow bill, white underparts, grey upperparts, plunge-diving fishing technique
Description
A large and distinctive tern, characterized by its prominent shaggy black crest and bright yellow bill. It is a highly vocal species often found in coastal and marine environments, where it skillfully plunge-dives to catch fish.
