Ospreys are a key natural resource at Lake Roosevelt NRA. Ospreys occupy most ecosystems, are migratory, cover large home ranges, and are top predators in complex food webs. Fish constitute their primary diet, so ospreys are susceptible to second-hand environmental contaminants in the food chain. Additionally, ospreys are sensitive to human disturbance, which along with the presence of contaminants in the water, can have a negative effect on osprey reproduction. All of these factors make osprey an indicator species that can provide information on the overall condition of an ecosystem.
US Fish and Wildlife
On August 9, 2007, the bald eagle was removed from the federal list of threatened and endangered species. After nearly disappearing from most of the United States decades ago, the bald eagle is now flourishing across the nation and no longer needs the protection of the Endangered Species Act. Bbald eagles will continue to be protected by the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act. Both federal laws prohibit “taking” – killing, selling or otherwise harming eagles, their nests or eggs.
Did You Know?
Lake Roosevelt's sturgeon are 8 to 20 feet long. They are also at least 70 years old. In 1941, Grand Coulee Dam flooded the fast-moving waters they need to spawn. To help out the population, the state of Washington introduced new fish to the lake in 2006.