Rock Sandpiper flock on the mudlfats near Kasilof, AK in the winter.
Images
Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
![A flock of shorebirds along Cook Inlet in the winter](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ROSA_flock_Kasilof_12-18-2007_Dan_Ruthrauff.jpg?itok=_zt-VLap)
Rock Sandpiper flock on the mudlfats near Kasilof, AK in the winter.
![Shorebirds standing on the ice](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/ROSA_Kasilof_12-18-2007_Dan_Ruthrauff.jpg?itok=vU3v7a-o)
Rock Sandpipers huddle together on the ice near Kasilof, Alaska.
Rock Sandpipers huddle together on the ice near Kasilof, Alaska.
Three caribou standing in the tundra. These caribou are part of the Porcupine caribou herd.
Three caribou standing in the tundra. These caribou are part of the Porcupine caribou herd.
This nearly century-old whaling boat rests along the Beaufort Sea coast near Lonely, Alaska in July, 2007. The boat was washed away to sea just a few months later.
This nearly century-old whaling boat rests along the Beaufort Sea coast near Lonely, Alaska in July, 2007. The boat was washed away to sea just a few months later.
Mayumi Arimitsu and John Piatt processing a trawl catch on the USGS R/V Alaskan Gyre in Kenai Fjords, Alaska.
Mayumi Arimitsu and John Piatt processing a trawl catch on the USGS R/V Alaskan Gyre in Kenai Fjords, Alaska.
Kittlitz’s Murrelets flying near glacier in Northwestern Fjord, Kenai Fjords National Park, Alaska.
Kittlitz’s Murrelets flying near glacier in Northwestern Fjord, Kenai Fjords National Park, Alaska.
A morning fog on the Pilgrim River. The camp is from the thermal ecology of sockeye salmon project.
A morning fog on the Pilgrim River. The camp is from the thermal ecology of sockeye salmon project.
Aerial view of the Pilgrim River looking towards the mountains.
Aerial view of the Pilgrim River looking towards the mountains.
Aerial view of the Pilgrim River
Aerial view of the Pilgrim River field camp
Aerial view of the Pilgrim River field camp
![Checking a fyke net near the shore of the Pilgrim River](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/checking_fyke_net_Pilgrim_River_Chris_Zimmerman.jpg?itok=IE_bahwD)
Biologists are checking a fyke net in the Pilgrim River for juvenile sockeye salmon to tag with archival tags. Unfortunately none were large enough for tagging.
Biologists are checking a fyke net in the Pilgrim River for juvenile sockeye salmon to tag with archival tags. Unfortunately none were large enough for tagging.
![A Bar-tailed Godwit with a Z0 tag on it's leg and a satellite transmitter antenna emerging from rear feathers](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/BARG_Z0_Alaska_ruthrauff.jpg?itok=pAXmjgZ9)
Bar-tailed godwit "Z0" instrumented with an implanted Argos satellite transmitter (note dorsally exposed antenna) to facilitate aerodynamics during the species non-stop flights across the Pacific Ocean.
Bar-tailed godwit "Z0" instrumented with an implanted Argos satellite transmitter (note dorsally exposed antenna) to facilitate aerodynamics during the species non-stop flights across the Pacific Ocean.
Bar-tailed Godwit tagged Z0 near Naknek, Alaska
Bar-tailed Godwit tagged Z0 near Naknek, Alaska
Biologists checking a fyke net as part of a fish project for the Norton Sound Economic Development Corporation. Otoliths were extracted and read for ages from the fish captured in this fyke net.
Biologists checking a fyke net as part of a fish project for the Norton Sound Economic Development Corporation. Otoliths were extracted and read for ages from the fish captured in this fyke net.
![Juvenile salmon trapping on the Nome River, Alaska](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Juvenile_Salmon_Trapping_Nome_River_Chris_Zimmerman.jpg?itok=9qLiheoy)
Biologists checking a fyke net as part of a fish project for the Norton Sound Economic Development Corporation. Otoliths were extracted and read for ages from the fish captured in this fyke net.
Biologists checking a fyke net as part of a fish project for the Norton Sound Economic Development Corporation. Otoliths were extracted and read for ages from the fish captured in this fyke net.
An inclined plane trap on the Kwethluk River. Biologists are capturing chum salmon juvenile smolt.
An inclined plane trap on the Kwethluk River. Biologists are capturing chum salmon juvenile smolt.
Marbled Godwit on a nest near Ugashik, Alaska.
Marbled Godwit on a nest near Ugashik, Alaska.
A side channel of the Matanuska River. Results from this study were published in Curran, J.H., McTeague, M.L., Burril, S.E., and Zimmerman, C.E., 2011, Distribution, persistence, and hydrologic characteristics of salmon spawning habitats in clearwater side channels of the Matanuska River, southcentral Alaska: U.S.
A side channel of the Matanuska River. Results from this study were published in Curran, J.H., McTeague, M.L., Burril, S.E., and Zimmerman, C.E., 2011, Distribution, persistence, and hydrologic characteristics of salmon spawning habitats in clearwater side channels of the Matanuska River, southcentral Alaska: U.S.
![Winter phase Arctic fox on the northern coast of Alaska](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/arctic_fox_Mike_Lockart_2007a.jpg?itok=YpotFZ8L)
An arctic fox in it's white winter phase. Taken during polar bear studies on the northern coast of Alaska.
An arctic fox in it's white winter phase. Taken during polar bear studies on the northern coast of Alaska.
![An anesthetized polar bear lying on the snow while a scientist is measuring the neck area where hair is missing due to alopecia](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/polar_bear_alopecia_neck.jpg?itok=SXTuCbsG)
A polar bear with hair loss (alopecia) along its neck. The bear was captured by USGS scientists using the immobilizing drug Telazol
A polar bear with hair loss (alopecia) along its neck. The bear was captured by USGS scientists using the immobilizing drug Telazol
A bearded seal on the edge of the sea ice
A bearded seal on the edge of the sea ice