A melanistic (all dark) Common Murre at its nesting site on Gull Island in Kachemak Bay, Alaska, 2019. See related paper published in the Marine Ornithology: Journal of Seabird Research and Conservation at: http://www.marineornithology.org/PDF/50_2/50_2_225-227.pdf.
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.
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Melanistic Common Murre at its nesting site
A melanistic (all dark) Common Murre at its nesting site on Gull Island in Kachemak Bay, Alaska, 2019. See related paper published in the Marine Ornithology: Journal of Seabird Research and Conservation at: http://www.marineornithology.org/PDF/50_2/50_2_225-227.pdf.
Bald Eagle flush Black-legged Kittiwakes from their nests
Black-legged Kittiwakes flush from their nests at Gull Island as Bald Eagle flies by. Gull Island is located in Kachemak Bay, Alaska.
Black-legged Kittiwakes flush from their nests at Gull Island as Bald Eagle flies by. Gull Island is located in Kachemak Bay, Alaska.
A Common Murre holds a Pacific sand lance near Gull Island in Alaska
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.
Common Murres on the water near their colony at Gull Island, Alaska
Common Murres on the water near their colony at Gull Island, Alaska.
Common Murres on the water near their colony at Gull Island, Alaska.
A Common Murre carries a Pacific sand lance
A Common Murre carries a Pacific sand lance, one of the most common prey items for murres, near its colony at Gull Island, Alaska.
A Common Murre carries a Pacific sand lance, one of the most common prey items for murres, near its colony at Gull Island, Alaska.
A Bald Eagle disturbs nesting Black-legged Kittiwakes
A Bald Eagle disturbs Black-legged Kittiwakes nesting on Gull Island, Alaska.
A Bald Eagle disturbs Black-legged Kittiwakes nesting on Gull Island, Alaska.
Traffic counter on oil field road
Traffic counter placed along an oil field road in northern Alaska to assess the responses of caribou to vehicle traffic.
Traffic counter placed along an oil field road in northern Alaska to assess the responses of caribou to vehicle traffic.
Beaver lodge and drained impoundment in tributary of the Noatak River
Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Impounded water above beaver dam on the Wrench Creek
Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Lesser Yellowlegs chick foraging in boreal forest
Lesser Yellowlegs chicks are precocial, meaning that they hatch in an advanced state and are capable of feeding themselves and moving independently almost immediately after hatch. Since the 1970s, this species has declined by ~63%, yet the potential cause(s) of the decline are not fully understood.
Lesser Yellowlegs chicks are precocial, meaning that they hatch in an advanced state and are capable of feeding themselves and moving independently almost immediately after hatch. Since the 1970s, this species has declined by ~63%, yet the potential cause(s) of the decline are not fully understood.
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Chilkat River sonar on a bridge
Chilkat River sonar on a bridge
Kashwitna River bridge debris
Kashwitna River bridge debris
Lowering minnow trap to fish
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Minnow trap in icehole
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Shublik Spring open water
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Canning River with bars
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Michael Carey and Vanessa von Biela on Canning River
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Hole in the ice from an auger on Canning River
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.
Supporting the project of winter habitat of juvenile Dolly Varden in the Canning River.