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♦ 1Olsen, J., Judge, D., Fuentes, E., Rose, AB and Debus, S. (2010).
Diets of Wedge-tailed Eagles (Aquila audax) and Little Eagles (Hieraaetus morphnoides) breeding near Canberra, Australia Journal of Raptor Research 44: 50–61
♦ 2Some aspects of the biology of the Black Falcon Falco subniger S. J. S. Debus and J. Olsen, Corella, 2010, 35(1): 29–36