• [Wiki] http://en.wikipedia.org/wiki/Parabuteo_unicinctus.
• [AnAge] https://genomics.senescence.info/species/entry.php?species=Parabuteo_unicinctus.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=FBED1927FAA44D27&sec=lifehistory.
• [BednHayd1991] Bednarz, J. C. and Hayden, T. J. (1991). Skewed brood sex ratio and sex-biased hatching sequence in harris's hawks. The American Naturalist, 137(1):116--132.
• [Schn2020] Dwyer, J. F. and Bednarz, J. C. (2020). Harris's hawk (Parabuteo unicinctus), version 1.0. in birds of the world (a. f. poole, editor). cornell lab of ornithology, ithaca, ny, usa. doi:10.2173/bow.hrshaw.01.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [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.