• [Wiki] http://en.wikipedia.org/wiki/Plectrophenax_nivalis.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Plectrophenax_nivalis.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=9BEBC02505B416EE&sec=lifehistory.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Mahe1964] Maher, W. J. (1964). Growth rate and development of endothermy in the snow bunting (Plectrophenax nivalis) and Lapland longspur (Calcarius lapponicus) at Barrow, Alaska. Ecology, 45:520--552.
• [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.