Gull-billed Tern
NameGull-billed Tern
Common NameGull-billed Tern
Scientific NameGelochelidon nilotica
FamilyLaridae
Wingspan (cm)79
Length (cm)37.5
Weight (g)215
Plumage DetailsAdult breeding plumage features a solid black cap extending to the nape, white cheeks and underparts, and pale grey back and upperwings. The bill is stout and entirely black, and the legs are black. Non-breeding birds have a white forehead with a dark patch behind the eye.
Vocalization / CallVocalizations include a harsh, grating 'ka-WAK' or 'KEE-yak', often repeated, and a softer 'chup-chup' sound.
Primary Dietcarnivore
Primary Habitatscoastal, wetland, grassland
Conservation Statusleast-concern
Geographic RangeThis species has a widespread global distribution, breeding in temperate and tropical regions across North America, Europe, Asia, Africa, and Australia. Northern populations are migratory, moving to warmer areas during winter.
Identifying FeaturesStout, all-black bill, Black cap (breeding plumage), Pale grey upperparts, White underparts, Often forages over land
Description
The Gull-billed Tern is a medium-sized tern characterized by its stout, all-black bill, which gives it a gull-like appearance. It typically forages over both land and water, often catching insects in flight or small prey from shallow water.
