1 62 CHECK-LIST OF NORTH AMERICAN BIRDS. 



400. Picoides arcticus (Swains.). 



Arctic Three-toed Woodpecker. 



Picus (Apfernus) arcticus Swains, in Sw. & Rich. Fauna Bor. 



Am. II. 1831, 313. 

 Picoides arcticus Gray, Gen. B. I. 1845, 434* 



[B 82, C 300, R 367, C 443.] 



Geog. Dist. — Northern North America, from the arctic regions 

 south to the northern United States (New England, New York, 

 Michigan, Minnesota, and Idaho), and in the Sierra Nevada to 

 Lake Tahoe. 



401. Picoides americanus Brehm. 



American Three-toed Woodpecker. 



Picoides americanus Brehm, Handb. Vog. Deutschl. 183 1, 195. 



[B 83, C 301, R 368, C 444.] 



Geog. Dist. — Northern North America, east of the Rocky Moun- 

 tains, from the arctic regions southward to the northern United 

 States (Maine, Mass., New York). 



401 a. Picoides americanus alascensis (Nels.). 



Alaskan Three-toed Woodpecker. 



Picoides tridactylus alascensis Nelson, Auk, I. April, 1884, 165. 

 Picoides america?tus alascensis Ridgw. Pr. U. S. Nat. Mus. VIII. 



1885,355- 



[B— , C— , R— ,C— .] 

 Geog. Dist. — Alaska, south to northern Washington. 



401 b. Picoides americanus dorsalis Baird. 



Alpine Three-toed Woodpecker. 



Picoides dorsalis Baird, B. N. Am. 1858, 100. 



Picoides americanus dorsalis Baird, Orn. Calif. I. 1870, 386. 



[B 84, C 301^, R 368^, C 445-] 

 Geog. Dist. — Rocky Mountain region, from British Columbia 

 and Idaho south into New Mexico. 



