Images

Lesser Yellowlegs typically consume insects, such as flies, beetles, and mayflies), small fish, crustaceans, aquatic worms, mollusks, spiders, and seeds. Lesser Yellowlegs are active foragers and are commonly observed walking rapidly through shallow wetlands while pursuing prey.

USGS and Geological Survey of Canada scientists sample sediment cores collected from the sea floor along the Queen Charlotte Fault. This was taken while they were working with (or in) the Geological Survey of Canada.

(Left to right) Danny Brothers (USGS Pacific Coastal and Marine Science Center [PCMSC]), Peter Haeussler (USGS Alaska Science Center), Maureen Walton (PCMSC), and Jamie Conrad (PCMSC) select seafloor sediment samples from cores collected along the Queen Charlotte-Fairweather fault.

Researchers use ground penetrating radar to determine the depth of the snow on Wolverine Glacier. Wolverine Glacier is in the Kenai Mountains on the coast of south-central Alaska. In 1966 scientists with the USGS began making direct measurements of surface mass balance at Wolverine Glacier, one of the "benchmark glaciers" in Alaska.

USGS hydrologist monitoring water quality and collecting samples at USGS Station15015595 on the Unuk River, Alaska. In 2019, the USGS began studying the baseline water-quality of selected transboundary rivers in Alaska.

Emperor geese gathered near the shoreline on Kodiak Island.

John Reed, USGS Alaska Science Center, reviews genetic screening results to detect avian malarial parasites in wild birds sampled in Alaska.  The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

Christina Ahlstrom, USGS Alaska Science Center, reviews genomic sequencing results for antibiotic resistant bacteria recovered from wild bird samples collected at a landfill in southcentral Alaska. The USGS uses genomic information on antibiotic resistant bacteria in wild birds to understand transmission pathways and to identify potential threats to human, dome

John Reed, USGS Alaska Science Center, uses molecular techniques to screen blood samples collected from wild birds sampled in Alaska for avian malarial parasites. The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

John Reed, in the USGS Alaska Science Center Molecular Ecology Laboratory, uses molecular techniques to screen blood samples collected from wild birds sampled in Alaska for avian malarial parasites. The USGS uses genetic screening and sequencing techniques to understand how parasites may affect wildlife populations within the United States.

Christina Ahlstrom, USGS Alaska Science Center, reviews genomic sequencing results for antibiotic resistant bacteria recovered from wild bird samples collected at a landfill in southcentral Alaska. The USGS uses genomic information on antibiotic resistant bacteria in wild birds to understand transmission pathways and to identify potential threats to human, dome

Andy Reeves, USGS Alaska Science Center, prepares to sequence influenza A viruses in the Molecular Ecology Laboratory. The samples were collected from wild birds in Alaska.

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

Andy Reeves, in the USGS Alaska Science Center Molecular Ecology Laboratory, preparing to sequence influenza A viruses collected from wild birds sampled in Alaska.

Tazlina River sonar

Salcha River sonar near Salchaket

Unnamed stream and beaver pond in the Taiya River floodplain

Glacier Creek sonar

Black-bellied Plover on the mud shore of Big Creek, Alaska.

Pacific Golden-Plover on the shore near Big Creek, Alaska.