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♦ ¹THE DIET OF THE AUSTRALASIAN HARRIER (Circus approximans) IN THE MANAWATU-RANGITIKEI SAND COUNTRY, NEW ZEALAND, D. J. BAKER-GABB, Notornis 28: 241-254 (1981)
♦ ²Ecological Ramifications of Prey Size: Food Habits and Reproductive Biology of Australian Copperhead Snakes (Austrelaps, Elaidae), Richard Shine, Journal of Herpetology, Vol. 21, No. 1, pp. 21-28, 1987