Nyctea scandiaca
tags: Snowy Owl, Nyctea scandiaca, birds, mystery bird, bird ID quiz
[Mystery bird] Snowy Owl, Nyctea scandiaca, photographed on the Fort Pierre National Grasslands in South Dakota. [I will identify this bird for you tomorrow]
Image: Terry Sohl, 4 January 2009 [larger view]. 
Photo taken with Canon 50D, 400 5.6L. 
Please name at least one field mark that supports your identification. 
Review all mystery birds to date. 
