MUSEUM OF NATURAL HISTORY 



CORVALLIS. OREGON 



CONTENTS 



PAGE 



Discussion of Wyoming conditions in regard to birds. 5 



Complete list of birds known to occur in Wyoming 23 



New records for the State 81 



New breeding records 82 



Summary 82 



Hypothetical list . 83 



Local lists 87 



Index to Species . ■'*..,■ 131 



