OKDEK PASSEEES. 297 



Range. — Northern North America. Breeds in the Hudsonian 

 Zone and locally in the Canadian from northwestern Alaska, northern 

 Mackenzie, and northern Ungava to the base of the Alaska Peninsula, 

 central Saskatchewan, southern Ontario, and southern Quebec; win- 

 ters southward to central California, Arizona, New Mexico, Texas, 

 Kentucky, and Virginia. 



Lanius ludovici^us Linn^tjs. 



Range. — North America from southern British Columbia, Alberta, 

 Manitoba, and New Brunswick south to the Gulf coast and southern 

 Mexico. 



a. Lanius ludovicianus ludovicianus Linn.s:us. Loggerhead Shrike. [622.] 

 Lanius ludovicianus Linnaeus, Syst. Nat., ed. 12, I, 1766, 134. (Louisi- 

 ana.) 



Range. — Austroriparian Zone of the Atlantic and Gulf States from south- 

 ern North Carolina to southern Florida and west to Louisiana. 



6. Lanius ludovicianus ezcubitorides Swainson. White-rumped Shrike. 

 [622a.] 

 Lanius excubitorides Swainson, Fauna Bor.-Am., II, 1831 (1832), 11.5 , 

 pi. 34. (Carlton House, Saskatchewan.) 



Range. — Western North America. Breeds in Transition and Austral zones 

 from central Alberta, southern Saskatchewan, and southern Manitoba south 

 to southeastern California, Arizona, Texas, and northern Mexico to Tepic and 

 Durango, and from the western border of the Great Basin eastward across 

 the Plains; winters in southwestern United States and south to Isthmus of 

 Tehuantepec. 



c. Lanius ludovicianus gS.mbeli Ridgway. California Shrike. [6226.] 

 Lanius ludovicianus yambeli Ridgway, Manual N. A. Birds, 1887, 467- 



(Calaveras Co., California.) 



Range. — Pacific coast. Breeds in the interior valleys of southern British 

 Columbia, Washington, Oregon, California, and northern Lower California, 

 west to the coast from Marin County southward; winters south to Cape San 

 Lucas and in western Mexico to Morelos. 



d. Lanius ludovicianus dnthonyi Mearns. Island Shrike. [622c.] 

 Lanius ludovicianus anthonyi Mbakns, Auk, XV, July, 1898, 261. (Santa 



Cruz Island, California.) 

 Range.— Santa Barbara Islands and San Clemente Island, California, and 

 Santa Margarita Island, Lower California. 



