Снежна сова — разлика између измена

* {{Cite book | ref = harv | last = Linnaeus| first =Carl | authorlink=Carl Linnaeus | title = Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Tomus I. Editio decima, reformata | publisher= (Laurentii Salvii)| location = [[Стокхолм|Holmiae]] | language = латински | year = 1758| url=https://archive.org/stream/carolilinnaeisy00gesegoog#page/n102/mode/1up|pages = 92}}

* {{Cite book | ref = harv | last = Jobling| first= James A | year = 2010| title = The Helm Dictionary of Scientific Bird Names | publisher= Christopher Helm | location = London | isbn=978-1-4081-2501-4}}

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* {{ен}} [http://www.learnanimals.com/snowy-owl/ Подаци о снежним совама]

* {{ен}} [http://animals.nationalgeographic.com/animals/birds/snowy-owl.html Snowy Owl at National Geographic]

* {{ен}} [https://www.theguardian.com/environment/2015/jan/08/snowy-owl-increasingly-casting-spell-north-american-skies Snowy owl increasingly casting its spell over North American skies] (Jan. 2015), ''[[The Guardian (UK)|The Guardian]]''

* {{ен}} [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Snowy_Owl.html Snowy Owl Species Account]—Cornell Lab of Ornithology