Gull-billed tern
Sterna nilotica
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So called for possessing a gull-like bill. Breeding adults have a black cap from forehead to nape, while non-breeding adults have a black patch on their ear coverts.
AbundanceRare
Chinese Name鸥嘴噪鸥
Malay NameBurung Camar Tiram
Tamil nameபருத்த அலகு ஆலா