Attributes / relations provided by
♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 2Reproductive parameters in relation to food supply in the whiskered tern (Chlidonias hybrida), Jean-Marc Paillisson, Sébastien Reeber, Alexandre Carpentier, Loïc Marion, J Ornithol (2007) 148:6977