Remark:-
Nesting on coral islands, usually on trees with small branches but also on rocky ledges and on man-made structures, the white tern feeds on small fish which it catches by plunge diving (http://en.wikipedia.org/wiki/White_tern). Rare records from Kerala (Sashikumar et al., 2011).
References:-
BirdLife International (2015) Species factsheet: Anous tenuirostris. Downloaded from http://www.birdlife.org on 12/02/2015.
del Hoyo, J.; Elliott, A.; Sargatal, J. 1996. Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona, Spain.
Sashikumar,C., Praveen, J. Palot, M.J., Nameer, P.O. 2011. Birds of Kerala: status and distribution. DC Books, Kottayam. Pp. 590–593