California. Sonny Bono Salton Sea National Wildlife Refuge. Year-round or seasonal. Need volunteer to operate small visitor center from November - March, in premier birding area. Other opportunities include: maintenance, biology, farming, and environmental education. RV preferred. FHU and laundry. 28 hrs/wk. Send resume with references to: Volunteer Coordinator, Sonny Bono Salton Sea NWR, 906 West Sinclair Rd, Calipatria, CA 92233 or call: 760-348-5278.