Species Details

@MSH Sourav (TU Dresden, Germany);

Great Crested (Swift) Tern Did you see this animal?

Scientific Name : Thalasseus bergii
Family : Laridae
Order : Charadriiformes
Class : Aves
Phylum : Chordata
Other Name : Swift Tern
Habitat : Coast
Description : The Swift Tern is a grey waterbird with a black crown and crest (adult bird length approximately 53 cm, wing 36 cm, bill 6.5 cm, tarsus 3.5 cm, tail 18.5 cm). It looks dark grey from above and white from below except for a few details. Its bill is creamy to greenish lemon-yellow. It has dark brown irises, brownish-black legs and feet. It feeds on fish and prawns. The greater crested tern breeds in colonies with other seabirds. It forms monogamous pairs and the colony size depends on fish availability. The largest colony is in the Gulf of Carpentaria in Australia. The terns change nesting sites and can move over 200 km.
Distribution in Bangladesh
description written by:Fatema-Tuz-Zohora,Department of Zoology, Jagannath University,Dhaka;information source: Encyclopedia of Flora and Fauna of Bangladesh, Vol-26, iucnredlist.org;Photo credit and copyright:MSH Sourav (TU Dresden, Germany);taxonomic checklist:P. M. Thompson and S. U. Chowdhury (2020). A checklist of birds of Bangladesh.Birds Bangladesh;bird song owner:Mats Rellmar(www.xeno-canto.org/Mats Rellmar), bird sound copyright reserved according to www.xeno-canto.org rules; more information, please contact us.