Images

Sarah Schoen and pilot Chris Klosterman search for beachcast Common Murres along the Alaska Peninsula following the massive die-off of murres in 2015/2016.  Wide Bay, Alaska Peninsula

Retired USGS biologist Tony DeGange searches for Common Murre carcasses along the Alaska Peninsula following the massive die-off of murres in 2015/2016.  Puale Bay, Alaska Peninsula

USGS biologist Sarah Schoen identifies and counts Common Murre carcasses on the Alaska Peninsula following the massive die-off of murres in 2015/2016. Wide Bay, Alaska Peninsula

Retired USGS biologist Tony DeGange searches for Common Murre carcasses above the high tide line on the Alaska Peninsula following the massive die-off of murres in 2015/2016. Wide Bay, Alaska Peninsula

A Common Murre carcass decomposes just above the high tide line along the Alaska Peninsula following the massive die-off of murres in 2015/2016.  Wide Bay, Alaska Peninsula

A Common Murre carcass decomposes along the Alaska Peninsula following the massive die-off of murres in 2015/2016.  Wide Bay, Alaska Peninsula.

Dead Common Murres found on the beach along the Alaska Peninsula May 2, 2016. This bird was part of the large die-off of Common Murres across the Gulf of Alaska in 2015-2016.

A Common Murre carcass decomposes along the Alaska Peninsula following the massive die-off of murres in 2015/2016.  Portage Bay, Alaska Peninsula.

Alaska surveying crew circa 1924 using alidade and plane table; transportation by dogsled. USGS photo files.

Spectacled eider male and female flying near the Colville River in 2013.

Alaska Volcano Observatory scientist Mark Hansen working with Larsen Bay Mayor David Harmes on how the AVO-4 particulate monitor operates.

Scour under a bridge on the Kenai Peninsula in 2002.

Geologist doing field work in Alaska

Photomicrograph of gabbroic inclusion in Ogres Brow basaltic andesite. A rock thin section is created by gluing a small piece of rock onto a glass slide, then grinding it down to a thickness of 30 microns (the average human hair is about 100 microns in diameter) so that light shines through it when examined under the microscope.

More than 1,500 walruses resting on shore at Cape Grieg in southeastern Bristol Bay.

A Boreal Chickadee with a mildly deformed beak.

A male spectacled eider following implantation of a satellite transmitter in the Colville River delta in June 2009. After breeding numbers of spectacled eiders, a large sea duck, declined by 96 percent at a primary breeding area in Alaska, the species was listed as threatened.

Glacier Bay, Alaska, dive team.

A severely emaciated Common Murre carcass collected to determine the cause of death following a massive die-off of murres in 2015/2016.  Prince William Sound

Biologists walk the beach counting Common Murre carcasses following a massive die-off of murres in 2015/2016. Prince William Sound.

Dead Common Murres found on the beach in Cochrane Bay, Prince William Sound on Jan 10, 2016. These birds were part of the large die-off of Common Murres across the Gulf of Alaska in 2015-2016.