Thalasseus bergii (Lichtenstein, 1823)

Common Name: 
Great Crested Tern

Coastal mainland Australia and Tasmania.

Ecological Notes: 

Occupies islands, coastal bays and inlets, open beaches, lakes and large rivers. The Crested Tern feeds mainly on small surface fish that are between 5 to 8 cm long; these make up nearly 90% of prey.  Other prey items include including insects, crustaceans and cephalopods.

Additional Notes: 

Upon sighting prey from the air, an individual will plunge downward into the water and grab the fish behind the head. Crested Terns form small to large flocks, often with other species.


Birdlife Australia at Accessed 27 July 2020.

Atlas of Living Australia at Thalasseus bergii Accessed 29 July 2020.