Philadelphia school students observe waterfowl on Tinicum marsh while attending the 2011 Federal Junior Duck Stamp Contest, Philadelphia, PA. Subjects: Environmental education; Youth; Wildlife refuges; Wetlands. Location: Pennsylvania. Fish and Wildlife Service Site: JOHN HEINZ NATIONAL WILDLIFE REFUGE AT TINICUM. . 1998 - 2011.

---

Size: 2745px × 1821px
Photo credit: © piemags/FWL / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: education, environmental, refuges, water, wetland, wetlands, wildlife, youth