78 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Order GALLIFORMES. Gallinaceous Birds 

 and hoatzins. 



Suborder GALLI. Gallinaceous Birds. 



SuPERFAMiLY CRACOIDEA. Curassows and 



GUANS. 



Family CRACIDAE. Curassows and Guans. 



Subfamily PENELOPINAE. Guans. 



Genus ORTALIS Merrem. 



Ortdlida { = Ortalis] Merrem, Avium Rar. Icones et Descrip., II, 1786, 40. 

 Type, by subs, desig., Phasianus tnotmot Linnaeus (Lesson, 1829). 



Ortalis vetula vetula (Wagler). Chachalaca. [311.] 



Penelope vetula Wagler, Isis von Oken, XXIII, 1830, Heft, xi (Nov.), col. 

 1112. (Mexico = Tampico, Tamaulipas.) 



Range. — Lower Rio Grande Valley, Texas, and Mexico south to Vera 

 Cruz. [Closely related races occur in southern Mexico and Central America.] 



SuPERFAMiLY PHASIANOIDEA. Grouse, Quails, 

 Pheasants, and Turkeys. 



Family TETRAONIDAE. Grouse and Ptarmigans. 



Genus DEN DRAG APUS Elliot. 



Dendragapus Elliot, Proc. Acad. Nat. Sci. Phila., [XVI] 1864, No. 1, 

 Jan.-Feb. [April 23], 23. Type, by subs, desig., Tetrao obscurns Sat 

 (Baird, Brewer, and Ridgway, 1874). 



Dendragapus obsciirus obscurus (Say). Dusky Grouse. [297.] 



Tetrao obscurus Say, in Long, Exped. Rocky Mts., II, 1823, 14 (note), 

 (near Defile Creek = about 20 miles north of Colorado Springs, Colorado.) 



Range. — Rocky Mountains from northern Utah, southeastern Idaho, and 

 northern Colorado to central New Mexico and central Arizona, west to central 

 Nevada. 



