Wildlife species need a number of different habitat components in order to thrive. Food, water, shelter, and space are all essential pieces of the habitat pie. Wildlife species live in all types of habitat. Of all the habitats in Oregon and Washington, perhaps the most wildlife-friendly is the broadleaf woodland. Today, large tracts of pure broadleaf woodlands exist in very few places in Washington and Oregon. Prior to European settlement, white oak forests extended throughout the islands in Puget Sound and in Washington’s Puget Sound trough as well as throughout the length of Oregon’s Willamette Valley and into the Umpqua Valley.