304 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Agelaius phoeniceus megapotamus Ohe^holser. Rio Grande Red-wing. 



[498^.] 



Agelaius phoeniceus megapotamus Oberholser, Wilson Bull., XXXI, No. 

 1, March, 1919, 20. (Brownsville, Texas.) 



Range. — Southern coast of Texas and the Lower Rio Grande Valley south 

 through eastern Mexico to Coahuila, Nuevo Leon, and northern Vera Cruz. 



Agelaius phoeniceus arctolegus Oberholser. Giant Red-wing. [498i.] 



Agelaius phosniceus arctolegus Oberholser, Auk, XXIV, No. 3, July, 1907, 

 332. (Fort Simpson, Mackenzie.) 



Range. — -Breeds from Mackenzie and Keewatin (rarely to Cape Prince of 

 Wales, Alaska) south to Montana, North Dakota, Minnesota, Wisconsin, and 

 northern Michigan. In winter to Kansas, Arkansas, Louisiana, Alabama, 

 Texas, and Illinois. Accidental in Connecticut. 



Agelaius phoeniceus fortis Ridgway. Thick-billed Red-wing. [498(^.] 



Agelaius pha;niceus fortis Ridgway, Proc. Wash. Acad. Sci., Ill, April, 

 1901, 153. (Omaha, Nebraska.) 



Range. — Breeds from Idaho, Wyoming, and South Dakota to Colorado and 

 northern Texas. Winters principally in the southern part of its breeding range, 

 wandering to Louisiana and Arkansas. 



Agelaius phoeniceus nevadensis Grinnell. Nevada Red-wing. [498i.] 



Agelaius phoeniceus nevadensis Grinnell, Proc. Biol. Soc. Wash., XXVII, 

 No. 24, May 11, 1914, 107. (Quinn River Crossing, Humboldt County, 

 Nevada.) 



Range. — Breeds in the Great Basin region, from southeastern British 

 Columbia and northern Idaho, south through California (chiefly east of the 

 Sierra Nevada) to San Bernardino County and through Nevada to eastern 

 Arizona, New Mexico, and western Texas. Winters in the southern part of 

 its breeding range south at least to Chihuahua. 



Agelaius phoeniceus caurinus Ridgway. Northwestern Red-wing. [498/.] 



Agelaius phoEniceus caurinus Ridgway, Proc, Wash. Acad. Sci., Ill, 

 April, 1901, 153. (Cedar Hill, Vancouver Island, B. C.) 



Range. — Northwest coast from southwestern British Columbia to Mendoci- 

 no County, California. 



Agelaius phoeniceus mailliardonun van Rossem. San Francisco Red-wing. 



[498A;.] 



Agelaius phoeniceus mailH ardor um van Rossem, Condor, XXVIII, No. 5, 

 Sept. 21, 1926, 223. (Palo Alto, Santa Clara County, Cahfornia.) 



