Arkansas Valley Audubon Society is sponsoring a lunch ($10) at the Carriage House on the grounds of the historic Thatcher Mansion (Rosemount Museum) 406 W. 15th at noon followed by a tour of the mansion ($4.50) and viewing of Herman Nash bird photos. Herman Nash instituted the Audubon Society Christmas Bird Count in Pueblo in the 1900s. The 115th Christmas Bird Count will be held 1/14/14 through 1/5/15.