Shillapoo Wildlife Area Instream Flow; Riparian Habitat; Upland Habitat And Sediment; Water Quality Project IDBPA_200301200Recovery DomainsWillamette R. - Lower ColumbiaStart Date - End Date - StatusCompletedLast Edited08/27/2020 1 - 1 Description The Shillapoo Wildlife Areas principal purpose is to provide high quality habitat for migrating and wintering sandhill cranes, waterfowl and several other key species as mitigation for losses associated with Bonneville, John Day and The Dalles dams.