John Heinz National Wildlife Refuge at Tinicum impoundment pond in fall.
HeinzTinicum20150328copyrightJohn Heinz Wildlife Refuge Tinicum animals animal beast beasts creature creatures zoology undomesticated animals amphibian frog birds avain aves environment ecology ecosystem environmentalism scenery nature landscape land park national park wetlands wildlifeNorth AmericaUnited States of AmericaAmericaU.S.United StatesUSUSAPennsylvaniaPhiladelphia
