 OregonLive.com | Get out! Make the most of the Portland area's outdoor pa rks and natural areas OregonLive.com By Grant Butler, The Oregonian Enlarge Dania Maxwell, The Oregonian SHERWOOD, OREGON -- August 18, 2011 -- At the Tualatin River National Wildlife Refuge in Sherwood. The Refuge is now home to nearly 200 species of birds, over 50 species of mammals, ... |