• [Wiki] http://en.wikipedia.org/wiki/Bubo_scandiacus.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Bubo_scandiacus.
• [raptor] http://raptormonitoring.org/wp-content/uploads/2015/05/Raptors-2014-Snowy-Owl.pdf.
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• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [PotaSale2012] Potapov, E. and Sale, R. (2012). The snowy owl. T. & A. D. Poyser, London.
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