tags: Barnacle Goose, Branta leucopsis, birds, mystery bird, bird ID quiz
Barnacle Goose, Branta leucopsis
, photographed at Luonnontieteellinen keskusmuseo
(University of Helsinki Museum of Natural History), Helsinki, Finland. [
picture of the same species with its muscle and feathers]
Image: GrrlScientist, 18 May 2010 [
Canon SX100 IS.
Please name at least one field mark that supports your identification.
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