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Vol. ae | Ninth Supplement to the A. O. OU. Check-List. 97 
1899 
NINTH SUPPLEMENT TO THE AMERICAN ORNI 
THOLOGISTS’ UNION CHECK-LIST OF NORTH 
AMERICAN BIRDS. 
| THe Kighth Supplement to the A, O, U, Check-List of North 
American Birds — the first since the appearance of the ‘ second 
and revised” edition of the Check-List — was published in Janu- 
ary, 1897 (Auk, XIV, pp. 117-135). The present (Ninth) 
Supplement gives a report of the action of the Committee on 
Classification and Nomenclature of North American Birds on 
| all questions affecting the Check-List that have come before it 
for consideration since that date, covering the two years between 
January, 1897, and January, 1899. While a satisfactory decision 
was practicable in most cases, in quite a number of instances 
either the material available for examination was insufficient, or 
the questions were too complicated for the Committee to decide 
in the limited time available for concerted work. ‘These have 
been referred to subcommittees for investigation, and will come 
up for final action at a future meeting of the Committee. 
As in the previous Supplements, the numbers at the left of the 
scientific names furnish the means of easy collation of the Sup- 
plement with the Check-List. ‘The interpolated species and 
subspecies are numbered in accordance with the provision made 
therefor in the Code of Nomenclature (p. 14, last paragraph). 
( Roperr RipGway, Chairman. 
| J. A. ALLEN. 
Committee 4+ WILLIAM, BREWSTER. — 
ELLiIorr Cours. 
C. Harty MERRIAM. 
I. ADDITIONS TO THE CHECK-LIST, AND AC 
CEPTED CHANGES IN NOMENCLATURE. 
Famity URINATORIDZAS (Check-List, 2d ed., p. 3). (&% 
ALLEN, Auk, XIV, July, 1898, 312.) 
This becomes 
Famity GAVIIDZ, 
