Oaks Bottom in Southeast Portland, is the last remnant wetland along the Willamette River within the city of Portland. 170 acres of swamp, upland forest land and open water became Portland's first wildlife refuge in the 1980s. Over 200 species of birds can be seen throughout the year, including nesting pairs of Bald Eagles and Osprey, over fifty nesting pairs of Great Blue Herron, as well as hawks, kingfishers and countless ducks.