Great Crested Tern

Order - Charadriiformes
Family - Laridae (Gulls, Terns, Skimmers)

Great Crested Tern

Thalasseus bergii

大凤头燕鸥 (dà fèng-tóu yàn-ōu)

    Malay : Camar Berjambul Besar

    Japanese : オオアジサシ (ō aji-sashi)

    Kanji 日語漢字 : 大鯵刺

    Extent of Occurrence (resident/breeding) : 142,000,000km²
    Migratory Status : Full Migrant
    Breeding Endemic : No

    Size : 43–53 cm; 320–400 g (velox 340–400 g, thalassinus 320–350 g, cristatus 325–383 g); 

              Wingspan 100–130 cm

    

    Subspecies (4) and Distribution

• Thalasseus bergii velox (Cretzschmar, 1827)
  – Red Sea and NW Somalia E to Myanmar, Maldives and Sri Lanka; W populations winter S to Kenya.
• Thalasseus bergii thalassinus (Stresemann, 1914)
  – Tanzania, Seychelles, Aldabra and Rodrigues I, and possibly this race in NW Madagascar; wanders to S Somalia.
• Thalasseus bergii bergii (M. H. C. Lichtenstein, 1823)
  – coastal southern Africa (Namibia to Mozambique).
• Thalasseus bergii cristatus (Stephens, 1826)
  – Ryukyu Islands and southeastern China to the Philippines, the Sunda Islands, Wallacea, New Guinea, Australia, and the tropical Pacific Ocean (to southeastern Polynesia).

Distribution Map

Thalasseus bergii ssp. cristatus
Date : 27 February 2022

Location : Offshore Bagan Sungai Burung, Daerah Bagan Datuk, Perak

Thalasseus bergii ssp. cristatus
Date : 27 February 2022

Location : Offshore Bagan Sungai Burung, Daerah Bagan Datuk, Perak

Thalasseus bergii ssp. cristatus
Date : 26 December 2021

Location : Offshore Penaga, Mukim 4, Daerah Seberang Perai Utara, Pulau Pinang

Thalasseus bergii ssp. cristatus
Date : 11 November 2018

Location : Offshore Bagan Sungai Burung, Daerah Bagan Datuk, Perak

Thalasseus bergii ssp. cristatus
Date : 11 November 2018

Location : Offshore Bagan Sungai Burung, Daerah Bagan Datuk, Perak

Thalasseus bergii ssp. cristatus
Date : 11 November 2018

Location : Offshore Bagan Sungai Burung, Daerah Bagan Datuk, Perak