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♦ ¹Diet Composition of the Pharaoh Eagle Owl, Bubo ascalaphus, in Azraq Nature Reserve, Jordan, Adwan H. SHEHAB, Michal CIACH, Turk J Zool 32 (2008) 65-69
♦ ²CONTRIBUTION TO THE KNOWLEDGE OF THE DIET OF IRANIAN BIRDS, Abolghasem Khaleghizadeh, Mohammad E. Sehhatisabet, Екологія, Беркут 15, Вип. 1-2. 2006. pp. 145-150
♦ ³Contribution to the study of the diet of four owl species (Aves, Strigiformes) from mainland and island areas of Greece, Haralambos Alivizatos, Vassilis Goutner and Stamatis Zogaris, Belg. J. Zool., 135 (2) : 109-118