226 check-list of north american birds. 



Genus XANTHOURA Bonaparte. 



Xanthoura Bonapakte, Consp. Avium, I, 1850, 380. Type, by subs, 

 desig., Corvus peruvianus Gmelin = Corvus yncas Boddabht (Gray, 

 1855). 



Xanthoura luxudsa (Lesson). 



Range. — Lower Rio Grande Valley south to Guatemala and 

 Honduras. 



a. [Xanthoura luzuosa luxuosa. Extralimital.] 



b. Xanthoura luxuosa glauc^scens Ridgway. Green Jay. [483.] 



Xanthoura luxuosa glaucescens Ridgway, Auk, XVII, Jan., 1900, 28. 

 (Fort Brown, Texas.) 



Range. — Lower Rio Grande Valley, Texas, as far north as Laredo, and 

 Tamaulipas and Nuevo Leon, Mexico. 



Genus PERISOREXTS Bonaparte. 



Perisoreus Bonaparte, Giornale Arcadico, XLIX, 1831, 42. Type, by 

 subs, desig., Corvus carmdensis Linn^us (Gray, 1840). 



Peris6reus canadensis (Linn^us). 



Range. — Northern coniferous forests of North America south in 

 mountains to New York, New Mexico, and Arizona. 



a. Perisoreus canadensis canadensis (Linn^us). Canada Jay. [484.] 



Corvus canadensis Linn^us, Syst. Nat., ed. 12, I, 1766, 158. (Canada.) 



Range. — Boreal zones of eastern North America. Breeds from limit of 

 conifers in northwestern Mackenzie and central Keewatin and from northern 

 Quebec south to west central Alberta, northern Minnesota, Michigan, the 

 Adirondacks of New York, northern Maine, New Hampshire, New Brunswick, 

 and Nova Scotia; casual in Nebraska, Pennsylvania, and Massachusetts. 



b. Perisoreus canadensis capit&Us Ridgway. Rocky Mountain Jay. [484 a.] 



Perisoreus canadensis var. capitalis Ridgway, BuU. Essex Inst., V, Nov., 

 1873, 193, 199. (Hetiry's Fork, southwestern corner of Sweetwater 

 Co., Wyoming.) 



