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  1. Species
  2. ›
  3. Laridae
  4. ›
  5. Gelochelidon
  6. ›
  7. Gull-billed Tern
Gull-billed Tern
Photo · (c) Andrew Allen, some rights reserved (CC BY)

BirdUp · Species

Gull-billed Tern

Gelochelidon nilotica(Gmelin, JF, 1789)

Updated 21 March 2026

Origin: Native
Order
CHARADRIIFORMES
Family
Laridae
Genus
Gelochelidon

At a glance

The Gull-billed Tern is a large bird, about 35–38 cm long, native to Australia. It can be seen year-round.

Size
35–38 cm
Origin
Native
Best seen
Year-round
Commonness
Very common
  • Identification
  • Where
  • When
  • Behaviour

01 · Identification

How to tell it apart

What does a Gull-billed Tern look like?

The Gull-billed Tern is a large bird, about 35–38 cm long and weighing 165–320 g.

The gull-billed tern is a tern in the family Laridae. It is widely distributed and breeds in scattered localities in Europe, Asia, northwest Africa, and the Americas. The Australian gull-billed tern was previously considered a subspecies.

Description · wikipedia · CC BY-SA 4.0

Field specs

Length
35–38 cm
Weight
165–320 g

Measurements · avonet · CC BY 4.0

03 · When

When to look

When can you see a Gull-billed Tern?

The Gull-billed Tern is present across its Australian range year-round, so it can be seen in any month.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

05 · Behaviour

Habits and haunts

What does a Gull-billed Tern eat?

The Gull-billed Tern feeds on intertidal invertebrates and fish/invertebrates, usually foraging in flocks.

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02 · Where

Where to find it

Where does the Gull-billed Tern live in Australia?

The Gull-billed Tern is native to Australia, recorded across 71 of Australia’s bioregions.

BreedingPAL, AF, OR, NA, MA, SA : widespread inland, south-west Europe to north-east China; coastal China; coastal west North Atlantic and Caribbean; coastal south California and Mexico; coastal South America and inland north-central Argentina

Non-breedingTo subtropical and tropical coasts, rivers and lakes worldwide (except remote is.)

Distribution from BirdUp Australia community data

Legend

  • Resident
  • Vagrant
  • Breeding

8 regions recorded