• [Wiki] http://en.wikipedia.org/wiki/Trochilus_polytmus. Accessed : 2017-03-20.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=07E19970DF282BEE&sec=lifehistory.
• [bow] https://birdsoftheworld.org/bow/species/stream2/cur/breeding.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.