• [Wiki] http://en.wikipedia.org/wiki/Buteo_lineatus.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PenaDyks2013] Penak, B. L., Dykstra, C. R., Miller, S. J., and M., D. (2013). Using morphometric measurements to estimate age of nestling red-shouldered hawks in two eastern populations. The Wilson Journal of Ornithology, 125:630--637. doi:10.1676/13-020.1.
• [PrinPres1991] Prinzinger, R., A.Preßmar, and Schleucher, E. (1991). Body temperature in birds. Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.