Thalasseus bergii (M.H.C. Lichtenstein, 1823) - Greater Crested Tern
This is also known as the Large Crested Tern.
Sterna acuticauda J.E. Gray, 1831 - Black-bellied Tern
Old Taxonomy: Sterna melanogaster Temminck, 1827.
This species is listed as Endangered in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/).
This species is listed as Endangered in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/).Sterna aurantia J.E. Gray, 1831 - River Tern
This species is listed as Near Threatened in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/)