4,178 Free Images of Threatening

endangered and/or threatened species wildlife refuge fish animals wildlife viewing work of the service wildlife bird mammals biologists(usfws)

At the threshold

Hawaiian Stilt

Fisheries biologists measure Gulf sturgeon-1

Piping plover chick and adult

new jersey scenic

Fisheries biologists holds fin on a Gulf sturgeon

Comal Springs

Hine's emerald dragonfly larvae in shallow water-1

arthropod insects

Ash Meadows Speckled Dace-1

Devils Hole Pupfish in captivity-3

USFWS Bait bucket used for Lake sturgeon capture

equipment new york

Juvenile Chinook salmon-2

Fisheries biologists holds fin on a Gulf sturgeon-1

Male Least tern waves fish at female

Chinook salmon migrating-3

Cave opening at Carters Cave-2

landscape nature

Northern aplomado falcon-1

Fisheries biologists holds fin on a Gulf sturgeon-2

Endangered Hawaiian monk seal

animals mammals

Black-footed Ferret reintroduction

grassland mammals

Hawaii ‘Amakihi-1

Biologist holds Gila trout in Mineral Creek

partnership new mexico

Puerto Rican Parrot in flight

Chinook salmon-1

Monitoring bat populations

Mississippi Sandhill Crane-1

Ash Meadows Speckled Dace-1

Ash Meadows Speckled Dace-2

underwater fish

Devils Hole Pupfish in captivity-2

Group of Wood Storks

Pallid sturgeon-1

Indiana bat-5

landscape nature

Fisheries biologist displays Gulf sturgeon underside-1

Red wolf-2

wildlife animals

Paddlefish in clear water-1

Delmarva Peninsula fox squirrel-5

wildlife animals

Florida manatee-1

underwater water

Endangered Birds Nesting sign

Humpback chub

underwater fish

Laysan Albatross on Midway Atoll

Fisheries biologist displays Gulf sturgeon underside-1

Northern Wild monkshood on talus surface

Salt Marsh Birds Beak

Mountain yellow-legged frog-2

amphibian animals

Northern Long-Eared Bat

Pallid sturgeon-1

underwater fish

Red wolf-2

wildlife animals

Chinook salmon-3

Fisheries biologist releases Gulf sturgeon -1

Seen better days

amphibian animals

Mississippi Sandhill Crane-3

Pallid sturgeon-1

underwater fish

Gila trout-7

landscape nature

Devils Hole Pupfish in captivity-3

Pagosa skyrocket flower

Wyoming toad-1

reptiles animals

Mountain yellow-legged frog-1

Hawaiian duck

Moapa Dace

Garrett's mint

Devils Hole Pupfish in captivity-3

Texas Wild Rice-1

California Condor waits for his partner

wildlife refuge california

Piping plover chick-1

new jersey bird

Wolf collaring

Fisheries biologists measure Gulf sturgeon-1

Volunteer with baby loggerhead turtle

celebrities animals

Loggerhead sea turtle hatchling

reptiles animals

Devils Hole Pupfish in captivity-2

Devils Hole Pupfish in captivity-2

Wood stork-1

Devils Hole Pupfish in captivity-1

Fisheries biologists measure Gulf sturgeon-2

Northern long-eared Bat-4

Clump of green pitcher plants

Red wolf-1

wildlife animals

Finding a bat

Panama City crayfish-3

Female Short-tailed Albatross on Chick

Greater sage-grouse-2

Red wolf-1

wildlife animals

Miami Blue Butterfly-3

Wolf collaring-1

Laysan albatross in flight

Two trumpeter swans at Tetlin National Wildlife Refuge

Shovelnose Sturgeon in living stream

underwater fish

San Diego fairy shrimp-1

crustacean water

‘Alae ‘Ula (Hawaiian Moorehen)

Devils Hole Pupfish in captivity-1

Fisheries biologists measure Gulf sturgeon-4

Northern Aplomado Falcon-1

Green sea turtles

reptiles animals

Scales on a Gulf sturgeon -4

Texas horned lizard-4

reptiles desert

Sockeye salmon-1

Red wolf-1

wildlife animals

Release plume

Roseate tern nest hidden in the plants

Sumatran tiger

wildlife animals

Juvenile Chinook salmon-2

Aerial view of a brown bear fishing for salmon

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