Osprey are a fish eating bird of prey that underwent significant declines during the 1940s, 50s and 60s due to impacts from the pesticide DDT.
Although osprey were never listed under the Endangered Species Act, Willamette River populations along with populations across the United States plummeted. DDT was banned in 1972 and osprey along with other species impacted by DDT such as peregrine falcons, bald eagles and brown pelicans have made a comeback.
Today osprey are considered a common nesting species along the Willamette and Columbia Rivers.
They often utilize manmade structures such as power poles, utility towers and channel markers as substitutes for scarce suitable nest trees.
Osprey return to their nests year after year and nests can grow to weigh more than 1000 pounds.
More about Osprey: Go to this USGS publication about Osprey in Oregon to learn more about these amazing birds:
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