Attributes / relations provided by ♦1Assessing the diet of nestling Bearded Vultures: a comparison between direct observation methods, Antoni Margalida, Joan Bertran, and Jennifer Boudet, J. Field Ornithol. 76(1):4045, 2005 ♦2Moleon, Marcos, et al. "Predator-prey relationships in a Mediterranean vertebrate system: Bonelli's eagles, rabbits and partridges." Oecologia 168.3 (2012): 679+. Academic OneFile. Web. 15 July 2014.