Two mallard ducks at John Heinz National Wildlife Refuge, PA. Subjects: Aquatic birds. Location: Pennsylvania. Fish and Wildlife Service Site: JOHN HEINZ NATIONAL WILDLIFE REFUGE AT TINICUM. . 1998 - 2011.
Size: 2581px × 1936px
Photo credit: © piemags/FWL / Alamy / Afripics
License: Licensed
Model Released: No
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