228 CHECK-LIST OF NORTH AMERICAN BIRDS. 
a. [Corvus corax corax. Extralimital.] 
b. Corvus corax sinudtus WacLrerR. Raven. [486.] 
Corvus sinuatus WAGLER, Isis, XXII, 1829, 748. (Mexico.) 
Rance.— Oregon, Montana, and South Dakota south to Honduras, and 
east probably to Missouri, Illinois, and Indiana. 
c. Corvus corax principalis Ripcway. Northern Raven. [4862a.] 
Corvus corax principalis Ripaway, Manual N. A. Birds, 1887, 361. (St. 
Michael, Alaska.) 
Rance.— Northwestern Alaska, Melville Island, northern Ellesmere Land, 
and northern Greenland south to Washington, central Minnesota, Michigan, 
coast region of New Jersey and Virginia, and the higher Alleghenies to Georgia. 
Corvus cryptoleicus CoucH. White-necked Raven. [487.] 
Corvus cryptoleucus Coucu, Proce. Acad. Nat. Sci. Phila., VII, 1854, 66. 
(Charco Escondido, Tamaulipas, Mexico.) 
RanGe.— Deserts of western United States and Mexico, breeding 
in Sonoran zones from southeastern California, Arizona, New Mexico, 
and western Texas south to Guanajuato and Michoacan, Mexico; 
formerly to northern Colorado, western Nebraska, and western 
Kansas. 
Corvus brachyrhynchos Breuo. 
RancE.— Temperate North America. 
a. Corvus brachyrhynchos brachyrhynchos BreHm. Crow. [488.] 
Corvus brachyrhynchos BreuM, Beitr. Vogelkunde, II, 1822, 56. (North 
America.) 
Rance.— Eastern North America. Breeds from southwestern Mackenzie, 
central Keewatin, central Quebec, and Newfoundland south to southern Texas 
and the Gulf coast (except Florida); winters from near the northern bound- 
ary of the United States southward. 
b. Corvus brachyrhynchos pdscuus Cours. Florida Crow. [488a.] 
Corvus americanus pascuus Couss, Auk, XVI, Jan., 1899, 84. (Southern 
part of Florida.) 
Rance.— Peninsula of Florida. 
c. Corvus brachyrhynchos hésperis Ripaway. Western Crow. [488b.] 
Corvus americanus hesperis Ripaway, Manual N. A. Birds, 1887, 362. 
(Fort Klamath, Oregon.) 
