19.009 Fotos gratuitas de Usfws

investigación científica agua virginia occidental reptil ciencia peces equipo montana aves barcos

Snowy smiles

invierno montaña

Stocking fish-5

Wyoming toad-3

animales reptil

Fish Nutritionist dries and inspects fish food-3

Biologists capture a Gulf sturgeon in river-1

Service employee releases an Indigo bunting

Marine Mammal Stranding Course at NCTC-3

Wyoming toad-3

animales reptil

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-4

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Biologist working at Leadville National Fish Hatchery-6

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Hellbender in hand

carolina del norte anfibios

Field crew outfitted with special gear

mamíferos personas

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-1

Biologists search for Fountain Darter-4

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-3

Marine Mammal Stranding Course at NCTC-2

Medical instruments used by USFWS fisheries crew-1

Biologists search for Fountain Darter-1

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-1

Fish Nutritionist dries and inspects fish food-1

Biologist measures water velocity in a flume-1

NCTC Monarch Coordinator getting monarch butterfly out of net

voluntario insectos

Biologists dip net Gila trout out of tank into buckets

sociedad de negocios nuevo méxico

Cryogenic tanks for Pallid sturgeon sperm

Fish Nutritionist checks quality control of fish food

Marine Mammal Stranding Course at NCTC-1

Marine Mammal Stranding Course at NCTC-2

Biologists search for Fountain Darter-2

Marine Mammal Stranding Course at NCTC-2

Marine Mammal Stranding Course at NCTC-1

Biologists capture a Gulf sturgeon in river

Checking the mine wall for bats

murciélagos mamíferos

Wyoming toad-1

colorado reptil

Biologists search for Fountain Darter-4

primavera peces

Service employee behind a mist net

Hatchling Gopher tortoise

animales reptil

Biologists walking at Gavins Point National Fish Hatchery

Biologists release a Gulf sturgeon in river

Marine Mammal Stranding Course at NCTC

Measuring the wingspan of an Indigo bunting

Aerial view of Selawik National Wildlife Regue-2

cambio climático alaska

Northern Long-Eared Bat-4

murciélagos mamíferos

U.S. Fish and Wildlife Service Employee on Selawik National Wildlife Refuge

Biologists measure each bird

isla de hawái aves

Northern Long-Eared Bat-1

murciélagos mamíferos

Biology fieldwork-5

virginia occidental peces

Biologists search for Fountain Darter-1

primavera peces

Red Knot cannon netting-1

cuestionario aves

Biologist measures water velocity in a flume-3

Biologists search for Fountain Darter-3

primavera peces

Biologist stocks Gila trout in Mineral Creek-3

sociedad de negocios nuevo méxico

Long-Billed curlew ready for release

Biologist reattaches fish tank to helicopter cable-1

sociedad de negocios nuevo méxico

Red Knot cannon netting-3

cuestionario aves

Biologists search for Fountain Darter-1

primavera peces

Biologist shows front view of Gulf sturgeon in river-1

Traveling to a trap along a frozen river

invierno árbol

FWS biologist observes captive Devils Hole pupfish-2

USFWS Fisheries crew in boat preparing for lake sturgeon field work-7

Marine Mammal Stranding Course at NCTC-5

Wolf collaring-2

mamíferos invierno

Biologists show length of Gulf sturgeon in river-6

Biologists display spine of Gulf sturgeon in river-2

Netting Gulf sturgeon in river

Biologists search for Fountain Darter-1

primavera peces

Fish Nutritionist checks quality control of fish food-1

Marine Mammal Stranding Course at NCTC-1

Biologists dip net Gila trout out of tank into buckets-1

sociedad de negocios nuevo méxico

Fish Nutritionist checks quality control of fish food-1

Biologists spawning trout-2

Marine Mammal Stranding Course at NCTC-1

Red Knot cannon netting-1

Fish tank being lifted by helicopter

Waterfowl banding-1

Eastern small-footed bat-1

murciélagos mamíferos

Fish Nutritionist checks quality control of fish food-1

Biologist spawning trout-2

Marine Mammal Stranding Course at NCTC-2

Biologists dip net Gila trout out of tank into buckets-4

sociedad de negocios nuevo méxico

Marine Mammal Stranding Course at NCTC-1

Biologist conducts a swim test on a large Rainbow trout

Biologists tag a hellbender

carolina del norte anfibios

Fish Nutritionist checks quality control of fish food-1

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