USFWS National Digital Library

- Bird Family
- Birds; Wildlife refuges;
- Family of birds at John Heinz National Wildlife Refuge, PA.
- Images
- Black Crowned Night Heron and Snowy Egret
- Birds;
- Black crowned night heron and snowy egret at Pt. Mahon, DE.
- Images
- Black Crowned Night Herons
- Birds;
- Black crowned night herons at Pt. Mahon, DE.
- Images
- Black Crowned Night Herons
- Birds;
- Black crowned night herons at Pt. Mahon, DE.
- Images
- Black Ducks
- Aquatic birds;
- Black Ducks.
- Images
- Black-Necked Stilt
- Birds;
- Black-necked stilt at Pt. Mahon, DE.
- Images
- Black-Necked Stilt
- Birds;
- Black-necked stilt at Pt. Mahon, DE.
- Images
- Butterfly
- Insects; Flowering plants; Wildlife refuges;
- Butterfly perched on purple flower at John Heinz National Wildlife Refuge, PA.
- Images
- Butterfly on Flower
- Insects; Flowering plants; Wildlife refuges;
- Monarch Butterfly on marigold at John Heinz National Wildlife Refuge, PA.
- Images
- Chick in Nest
- Birds; Wildlife refuges;
- John Heinz National Wildlife Refuge, PA.
- Images
- Common Tern
- Birds;
- Common tern at Jake's Landing, NJ.
- Images
- Flock of Snow Geese
- Birds;
- Flock of snow geese at Bombay Hook National Wildlife Refuge, DE.
- Images
- Greater Yellowlegs
- Birds;
- Greater yellowlegs at Pt. Mahon, DE.
- Images
- Halloween Pennant Dragonfly
- Insects; Wildlife refuges;
- John Heinz National Wildlife Refuge, PA.
- Images
- Islands
- Islands; Rivers and streams; Wildlife refuges;
- Islands at John Heinz National Wildlife Refuge, PA.
- Images
- Least Sandpiper
- Birds;
- Least Sandpiper at Pt. Mahon, DE.
- Images
- Least Sandpipers
- Birds;
- Least sandpipers at Pt. Mahon, DE.
- Images
- Mallards
- Birds; Aquatic birds; Wildlife refuges;
- Female mallard ducks at John Heinz National Wildlife Refuge, PA.
- Images
- Mallards
- Aquatic birds;
- Two mallard ducks at John Heinz National Wildlife Refuge, PA.
- Images
- Ospreys
- Birds; Birds of prey; Wildlife refuges;
- Two ospreys at John Heinz National Wildlife Refuge, PA.
- Images