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.
♦ 2Feeding habits of the European pond terrapin Emys orbicularis in Camargue (Rhône delta, Southern France), Dario Ottonello, Sebastiano Salvidio, Elisabeth Rosecchi, Amphibia-Reptilia 26 (2005): 562-565