| Affiliation: | 1. Department of Fisheries and Wildlife, Oregon State University, Nash Hall 104, Corvallis, OR, 97331 USA E-mail: bruce.dugger@oregonstate.edu;2. Ducks Unlimited, Inc., 1220 Eisenhower Place, Ann Arbor, MI, 48108 USA;3. U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Nash Hall 104, Corvallis, OR, 97331 USA;4. Department of Fisheries and Wildlife, Oregon State University, Nash Hall 104, Corvallis, OR, 97331 USA;5. Washington Department of Fish and Wildlife, 600 Capitol Way N, Olympia, WA, 98501 USA;6. Ducks Unlimited, 1101 SE Tech Drive, Suite 115, Vancouver, WA, 98683 USA |
