• [Wiki] http://en.wikipedia.org/wiki/Phlogophilus_harterti.
  • [EoL] https://eol.org/pages/45512334.
  • [DaviJank2018] David, S., Jankowski, J. E., and Londoño, G. A. (2018). Combining multiple sources of data to uncover the natural history of an endemic Andean hummingbird, the Peruvian piedtail (Phlogophilus harterti). J. Field Ornithol., 89:315--325. doi:10.1111/jofo.12275.
  • [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.