References

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Lenz B., & dos Reis, A. 2011. Harpy Eagle-Primate Interactions in the Central Amazon. Wilson Journal Of Ornithology,
    123(2), 404-408

Piper, R. 2007. Extraordinary animals: an encyclopedia of curious and unusual animals. Greenwood Publishing Group,
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Rotenberg. J. A., Marlin  J A., Liberato P. Garcia W., 2012. First Record of a Harpy Eagle (Harpia harpyja) Nest in
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 San Diego Zoo 2013. . Accessed 01 December 2013. Birds: Harpy Eagle.  

Seymour, A.S.. F. Beckuy, F.J. Conteras, G. Hatherley, and J. Aldredo 2010. Hatching   synchrony, green
    branch collecting, and prey use by nesting harpy eagle (Harpia Harpyja). The Wilson Journal of Orinthology, 122(4),
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Shaner, K. 2011. “Harpy harpyja” (On-line), Animal Diversity Web. Accessed December 01 2013
    http://animaldiveristy.ummz.umich.edu/accounts/Harpis_harpyja/

Trinca, C. T., S. F. Ferrari, A. C. Lees 2007. Curiosity killed the bird: arbitrary hunting of Harpy Eagles Harpia harpyja
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