366 CHECK-LIST OF NORTH AMERICAN BIRDS. 
a. Saxicola cnanthe cnanthe (Linnuus). Wheatear. [765.] 
Motacilla enanthe LinNmus, Syst. Nat., ed. 10, I, 1758, 186. (Sweden.) 
Rancae.— Northern part of Northern Hemisphere. Breeds from British 
Isles, Scandinavian Peninsula, central Europe, and high mountains of southern 
Europe east to northern and east central Alaska, south to mouth of the Yukon 
and the Pribilof Islands; winters southward to India and eastern Africa. 
b. Saxicola cenanthe leucérhoa (GMELIN). Greenland Wheatear. [765a.] 
Motacilla leucorhoa GMELIN, Syst. Nat., I, ii, 1789, 966. (Senegal.) 
Rance.— Northeastern Arctic America. Breedsin Arctic Zone from Elles- 
mere Land and Boothia Peninsula east to Greenland and Iceland, and south 
to northern Ungava; winters in West Africa, migrating through the British 
Isles and France; casual in migration to Keewatin, Ontario, New Brunswick, 
Quebec, New York, Bermuda, Louisiana, and Cuba. 
GeNus SIALIA Swalrnson. 
Sialia Swatnson, Philos. Mag., N. S8., I, May, 1827, 369. Type, by 
monotypy, Sialia azurea Swainson = Motacilla sialis LInN=vs. 
Sidlia sialis (LINN&XUs). 
RaNnGcE.— Temperate eastern North America, west to the eastern 
base of the Rocky Mountains and Arizona and south to the highlands 
of Guatemala. 
a. Sialia sialis sialis (LINNewus). Bluebird. [766.] - 
Motacilla sialis Linnxvus, Syst. Nat., ed. 10, I, 1758, 187. (Carolina, 
Virginia, and Maryland.) 
Ranee.— Eastern North America. Breeds from lower Canadian to Lower 
Austral zone from southern Manitoba, northern Ontario, southern Quebec, 
and Newfoundland south to southern Texas, the Gulf coast, and southern 
Florida; casually west to base of the Rocky Mountains in Montana, Wyoming, 
and Colorado; winters most commonly south of the Ohio Valley and the 
Middle States; resident in Bermuda; accidental in Cuba. 
b. Sialia sialis filva Brewster. Azure Bluebird. [766a.] 
Sialia sialis fulua Brewster, Auk, IJ, Jan., 1885, 85. (Santa Rita 
Mountains, Arizona.) 
RanGE.— Southern Arizona and Mexico. Breeds mainly in Transition 
Zone from the mountains of southern Arizona south to Jalisco, Oaxaca, and 
Vera Cruz; winters south to northern Guatemala. 
