466 CHECK LIST OF NORTH AMERICAN BIRDS. 



Petrochelidon albifrons (Rafinesque). Cliff Swallow. 



Hirundo albifrons Rafinesque, Kentucky Gazette, n, s., I, No. 7, Feb. 14, 

 1822, 3. 



Modem form reported from Pleistocene: McKittrick, California. 



Family CORVIDAE. Jays, Magpies and Crows. 

 Subfamily GARRULINAE. Jays and Magpies. 



Genus CYANOCITTA Strickland. 



Cyanocitta Strickland, Ann. and Mag. Nat. Hist., ser. 1, XV, No. 98, 

 April, 1845, 261. Type, by orig. desig., Corvus cristaius Linnaeus. 



Cyanocitta stelleri (Gmelin). Steller's Jay. 



Corvus stelleri Gmelin, Syst. Nat., I, Pt. i, 1788, 370. 



Modern form reported from Pleistocene: Samwel Cave, Shasta County, and 

 Hawver Cave, Eldorado County, California. 



Genus PICA Brisson. 



Pica Brisson, Orn., 1760, I, 30; II, 35. Type, by tautonymy. Pica 

 Brisson = Corvus pica Linnaeus. 



Pica nuttalli (Audubon). Yellow-billed Magpie. 



Corvus nuttallii Audubon, Birds Amer. (folio), IV, 1836 [1837?], pi. 362, 

 fig. 1. 



Modern form reported from Pleistocene: Rancho La Brea, Los Angeles, 

 California. 



Subfamily CORVINAE. Crows and Ravens. 



Genus CORVUS Linnaeus. 



Corvus Linnaeus, Syst. Nat., ed. 10, I, 1758, 105. Type, by subs, desig., 

 Corvus corax Linnaeus (Gray, 1840). 



Corvus corax Linnaeus. Raven. 



Corvus corax Linnaeus, Syst. Nat., ed. 10, I, 1758, 105. 



Modern form reported from Pleistocene: Hawver Cave, Eldorado County, 

 Carpinteria, McKittrick, and Rancho La Brea, Los Angeles, California. 



