• [Wiki] http://en.wikipedia.org/wiki/Ardenna_grisea.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Puffinus_griseus.
• [avibase] urlhttps://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=E94A7272C71031C6&sec=lifehistory.
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