Attributes / relations provided by
♦ 1de Magalhaes, J. P., and Costa, J. (2009)
A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 2Food habits of the Crested Caracara (Caracara plancus) in the Andean Patagonia: the role of breeding constraints, A. Travaini, J. A. Donázar, O. Ceballos & F. Hiraldo, Journal of Arid Environments (2001) 48: 211219
♦ 3Assessing 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
♦ 4Breeding Biology of a Grey Eagle-Buzzard Population in Patagonia, Fernando Hiraldo, José A. Donázar, Olga Ceballos, Alejandro Travaini, Javier Bustamante and Martín Funes, The Wilson Bulletin, Vol. 107, No. 4 (Dec 1995), pp. 675-685
♦ 5Uncia uncia, Helmet Hemmer, MAMMALIAN SPECIES No. 20, pp. 1-5 (1972)
♦ 6International Flea Database♦ 7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005).
Host-Parasite Database of the Natural History Museum, London
♦ 8Nunn, C. L., and S. Altizer. 2005.
The Global Mammal Parasite Database: An Online Resource for Infectious Disease Records in Wild Primates. Evolutionary Anthroplogy 14:1-2.