SMITHSOTSriAN iisrsTiTUTioisr. 



UNITED STATES NATIONAL MUSEUM. 



BULLETIN 



OF THE 



UNITED STATES NATIONAL MUSEUM. 



ISTo. 50. 



THE BIRDS 



OF 



NORTH AND MIDDLE AMERICA. 



CURATOR, DIVISION OF BIRDS. 



Part VI. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1914. 



