Attributes / relations provided by
♦ ¹Malcolm R. Clark (1985): The food and feeding of seven fish species from the Campbell Plateau, New Zealand, New Zealand Journal of Marine and Freshwater Research, 19:3, 339-363
♦ ²del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.