46 Sixth Supplement to the A. O. U. Check-List. [j^ 



SIXTH SUPPLEMENT TO THE AMERICAN ORNITH- 

 OLOGISTS' UNION CHECK-LIST OF 

 NORTH AMERICAN BIRDS. 



By order of the Council of the American Ornithologists' 

 Union the Committee on Classification and Nomenclature of 

 North American Birds has prepared the following report on 

 the species, subspecies, and changes of nomenclature proposed 

 during the year ending November, 1893, forming the Sixth Sup- 

 plement to the American Ornithologists' Union Check-List. The 

 Committee met in Cambridge, Nov. 21-23, 1893, with the fol- 

 lowing members present: Allen, Brewster, and Merriam. On 

 all but one question the vote was unanimous. 



The numbers at the left of the scientific names facilitate colla- 

 tion with the Check-List. The interpolated species and sub- 

 species are numbered in accordance with the provision made 

 therefor in the Code of Nomenclature (p. 14, last paragraph). 



( Elliott Coues, Chairman. 

 I J. A. Allen. 

 Committee { William Brewster. 

 j C. Hart Merriam. 

 1^ Robert Ridgway. 



I. ADDITIONS. 



305 a. Tympanuchus americanus attwateri (Bendire). 

 Attwater's Prairie Hen. 



Tympanuchus attwateri Bendire, Forest and Stream, XL, 



No. 20, May 18, 1893, 425. 

 Tympanuchus americanus attwateri Bendire, MS. 



[B 464, part, C 384, part, R 477, part, C 563, part.~\ 

 Hab. Coast region of Louisiana and Texas. 



373^. Megascops asio aikeni Brewst. 

 Aiken's Screech Owl. 



