Images

Northern spotted owls (Strix occidentalis caurina) are mostly non-migratory, long-lived birds whose populations have declined in mature forests of western North America.

Between 2009 and 2018, scientists conducted a national scale assessment of mercury accumulation in the National Park System using dragonfly larvae as biosentinels (species that accumulate a pollutant in their tissues as an index of exposure to other organisms without significant adverse effects to the biosentinel) through a citizen science network called the Dragonf

Dragonfly larvae are ideal mercury biosentinels and can be used to predict concentrations in co-located fish species.

The Sagebrush Steppe Treatment Evaluation Project (SageSTEP) is an integrated, long-term study that spans six western states. Researchers are evaluating the effects of treatments to reduce juniper and pinyon woodlands to restore sagebrush steppe communities in the Intermountain West.

Field site truck and trailer at the Onaqui SageStep field site, field camp

Kodiak NWR Migrating species of Pacific Salmon return to many of the rivers on Kodiak Island. After spawning, their bodies often wash up on gravel bars, providing an easy dinner for scavengers.

Sagebrush seedlings grown at Birds of Prey National Conservation Area before outplanting to sites at BOP NCA in Nov 2012 in sites previously burned in wildfire summer 2012

This adult bullfrog was found in a private pond in Albany, Oregon. America bullfrogs are not native to the Pacific Northwest.

Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.

Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.

 Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.

Depredated Brewer's sparrow (Spizella breweri) chick and nest, Steens Mountain, SE Oregon.

Depredated Brewer's sparrow (Spizella breweri) chick and nest, Steens Mountain, SE Oregon.