Weekend Getaway NEW TRIP. The Mighty Mississippi. Savanna, Thomson area of Carroll County, Illinois along the Upper Mississippi River NWR area. November 14-15. Target species include Bald Eagles and 100s of Tundra Swans and other waterfowl and lingering land birds. Overnight in Savanna Saturday only. Travel early Saturday morning. Return Sunday afternoon. Dinner in Galena Area. $25 deposit. $50 double occupancy. $100 single occupancy. Limited to 12 participants. RSVP with Leader David Johnson at firstname.lastname@example.org.