Photograph by Finley and Bohlman of a young Great horned owl perching on a rock at Malheur lake, 1908. The Great horned owl has the most extensive range of habitat, the widest prey base, and the most variable nesting sites of any American owl.
The yellowcheek darter is found in the Little Red River basin in Arkansas. Although yellowcheek darters still inhabit most streams within their historic range, they exist in greatly reduced population numbers in the Middle, South, Archey, and...
During the early 1800s, wood bison numbers were estimated at 168,000, but by the late 1800s, the subspecies was nearly eliminated.
Excessive hunting was the primary factor leading to population decline. Another factor that is thought to have played...
image of the endangered Willamette Daisy. Willamette Valley prairies support a wide range of interesting plants. Because plants are the core of the prairie, prairie preservation and management should start with a fundamental understanding of...
Image of the white-topped aster. Willamette Valley prairies support a wide range of interesting plants. Because plants are the core of the prairie, prairie preservation and management should start with a fundamental understanding of plants.
Eight-point buck standing in dry grass with big blue sky at National Bison Range. For more information about this refuge visit http://www.fws.gov/bisonrange/nbr/.
Banded Trumpeter Swan hen with four young swimming in reeds. This is the largest waterfowl species native to North America. Most weigh 21-30 pounds, males are larger and may exceed 35 pounds.The Trumpeter Swan is the largest waterfowl species...
The Taylor's checkerspot was once found throughout grasslands in the Willamette Valley, Puget Sound, and south Vancouver Island. The historic range and abundance of the Taylor's checkerspot is not precisely known because exhaustive searches did not...
