ae Twelfth Supplement to the A. O. U. Chech-List. 343 
Genus NUTTALLORNIS Ripcway. 
Nuttallornis RipGway, Man. N. Am. Birds, 1587, 337. ‘Type, 
Tyrannus borealis SwWAiNSon. (Gy, Couns: Osprey, III, 
1899, 144.) 
459. WNuttallornis borealis (SWAINSON). 
Lyrannus borealis Swainson, Wauna Bor.-Amer., II, 1831, 
DAt, Dis 35) 
Nuttallornis borealis OBWRHOLSER, Auk, XV I, Oct. 1899, 331. 
4744, Otocoris alpestris leucolema (Couns), of the Check- 
List, becomes 
dida, Otocoris alpestris arcticola Onweuoisie. 
Pallid Horned Lark. 
Otocoris alpestris arcticola Ovw‘wruoiser, Proc, U. §. Nat. 
Mus., XXIV, 1902, 816, 
(B—, C—, R C—.] 
Groc, Dist.— “In summer, Alaska (chiefly the interior), with 
the valley of the Upper Yukon River; in winter, south to Oregon, 
Utah, and Montana.” (C/, OBERHOLSER, Proc. U.S. Nat. Mus., 
XXIV, 1902, 816.) 
474¢, Otocoris alpestris arenicola Hunsuaw. This becomes 
474c, Otocoris alpestris leucoleema (Cougs), 
Desert Horned Lark. 
Lremophila alpestris \. leucolema ( /OUES, Birds N, W., 1874, 
38. 
Olocoris alpestris leucolema STEJNEGER, Proc, U.S. Nat. Mus., 
My POOL, 34; 
[B—, C 534, R 3004, C 83.| 
Groc, Dist,—- Western United States, from central Dakota, 
