BIRDS OF NORTH AND MIDDLE AMERICA, 741 
Adult male.—Wing, 161-180 (173.6); tail, 46-52 (49.3); exposed 
culmen, 30-33.5 (31.7); tarsus, 31-34.5 (32.5); middle toe, 36.5-42.5 
(39.3) .% 
Adult female.—Wing, 166-181 (177.5); tail, 44.5-49.5 (47.3); 
exposed culmen, 29.5-34.5 (32.8); tarsus, 32-35 (33.1); middle toe, 
37.5-42 (39.9).° 
Coasts and islands of Bering Sea, adjacent portion of Arctic Ocean 
(mainland east of Koliutschin Bay, Siberia; Wrangel Island; Herald 
Island), southward along Pacific coast of North America to southern 
California (Santa Barbara Islands, resident and breeding), and on 
Asiatic side to coast of Kamchatka (Commander Islands, breeding) ; 
southward in winter to Lower California (Point Sandoval; San 
Nicolas Island). 
(Uria grylle] 8 Latuam, Index Orn., ii, 1790, 797 (Unalaska Island, Alaska). 
[ Uria grylle] E Lataam, Index Orn., ii, 1790, 798 (Kamchatka). 
Cepphus columba Pattas, Zoogr. Rosso-Asiat., ii, 1826, 348, part (Kamchatka 
and Bering Straits)—Newron, Ibis, 1865, 519 (Spitzbergen).—_STEJNEGER, 
Proc. U. 8. Nat. Mus., vii, 1884, 229 (crit., synonymy, etc.); x, 1887, 118 
(Commander Islands); Bull. U. 8. Nat. Mus., no. 29, 1885, 21 (Commander 
Islands; habits, etc.).—Bairp, Brewer, and Rineway, Water Birds N. Am., 
ii, 1884, 494.—Turner, Auk, ii, 1885, 159 (Attu Island, Aleutian chain, 
breeding); Contr. N. H. Alaska, 1886, 121 (St. Michael; Cape Newenham; 
Aleutian Islands; etc.; habits)—AMERICAN OrNITHOLOGISTS’ UNIon, Check 
List, 1886, and 2d ed., 1895, no. 29; 3d ed., 1910, p.31.—Evrrmann, Auk, 
iii, 1886, 88 (Santa Barbara Islands, ‘California, breeding)—Netson, Rep. 
N. H. Coll. Alaska, 1887, 44 (Sitka; Kodiak; Shumagins; Aleutians; etc.; 
habits).—TowNsEND, Cruise ‘Corwin’ in 1885 (1887), 98 (Unalaska).—Bryanr 
(W. E.), Proc. Calif. Ac. Sci., 2d ser., i, 1888, 30.(Farallon Islands, breeding; 
@ Kleven specimens. 6 Fourteen specimens. 
Ex- aren 
Locality. Wing. | Tail. | posed | Tarsus. Middle 
culmen. toe. 
MALES, 
One adult male from California..........--..-.4.--2--+--0-- +e 177.5 50 33.5 33.5 42.5 
Two adult males from Washington............-.-.---.--2--5-- 173. 2 50. 5 31 | 32.5 36.5 
Six adult males from Alaska (Aleutian and Shumagin Islands).} 171.3 47.8 32.1 32.1 39.4 
Two adult males from Siberia (Emma Harbor).........-..---- 179 52.2 30. 2 32. 2 40 
FEMALES. 
Three adult females from California..............--.--------+-+ 177.7 47.8 32.7 33.8 39.8 
Three adult females from Washington..........-.--.--.2---0-- 170.7 45.5 33.3 33.7 39.7 
Four adult females from Alaska (Aleutian and Shumagin 
TWSIOHGS) «osc on se ese ae eee ee eee eee aitneeeeseeeeesed 174.4 48.5 33.5 33. 2 40 
Four adult females from Siberia (Emma Harbor).............. 178 47.1 31 32.1 39.9 
«The A. O. U. Check List (third edition, 1910) includes northern Japan in the 
Asiatic range of the species; but citations of C. columba from all localities south of 
Kamchatka apparently all belong to C. snowt (see p. 733). 
