Auk 
Jan. 
40 Sixth Supplement to the A. O. U. Check-List. 
SIXTH SUPPLEMENT TO THE AMERICAN ORNITH- 
OLOGISTS’ UNION CHECK-LIST OF 
NORTH AMERICAN BIRDS. 
By orper 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). 
( Evuiorr Cours, Chatrman. 
| J. A. ALLEN. 
{ WinniAmM BREWSTER. 
} C. Hart Merriam. 
(| Roserr Ringway. 
Commitice 
I. ADDITIONS. 
305 e. Tympanuchus americanus attwateri (Benpire). 
Attwater’s Prairie Hen. ; 
Tympanuchus atiwater? BeNpIrE, Forest and Stream, XL, 
No. 20, May 18, 1893, 425. 
Tympanuchus americanus attwater? BENDIRE, MS. 
[B 464, part, C 384, part, R 477, part, C 563. part.) 
Har. Coast region of Louisiana and Texas. 
373 2. Megascops asio aikeni Brewsr. 
Aiken’s Screech Owl. 
