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.
♦ ²Food Habits and Reproductive Biology of Small Australian Snakes of the Genera Unechis and Suta (Elapidae), RICHARD SHINE, Journal of Herpetology, Vol. 22, No. 3, pp. 307-315, 1988