336 CHECK-LIST OF NORTH AMERICAN BIRDS. 
Salpinctes obsolétus (Say). 
RancE.— Western United States and Mexico to Guatemala. 
a. Salpinctes obsoletus obsoletus (Say). Rock Wren. [715.] 
Troglodytes obsoleta Say, in Long’s Exped., II, 1823, 4 (note). (Northern 
part of Douglas Co., Colorado, near junction of Plum Creek with South 
Platte River.) 
Rance.— Western North America. Breeds mainly in Transition and 
Sonoran zones from southern British Columbia, west central Alberta, and 
southwestern Saskatchewan south to central Sonora, San Luis Potosi, and 
Zacatecas, and from the Pacific, including the Farallon, Santa Barbara (ex- 
cept San Nicolas), and Coronados islands, peninsula of Lower California and 
adjacent islands, east to western North Dakota, central Nebraska (casually 
western Iowa), and central Texas; winters in southern part of its United 
States range and in Mexico. 
b. Salpinctes obsoletus pulvérius GrINNELL. San Nicolas Rock Wren. 
[715a.] 
Salpinctes obsoletus pulverius GRINNELL, Auk, XV, July, 1898, 238. (San 
Nicolas Island, California.) 
Ranax.— San Nicolas Island, California. 
Salpinctes guadeloupénsis RipGway. Guadalupe Rock Wren. [716.] 
Salpinctes obsoletus guadeloupensis Ripaway, Bull. Geol. & Geog. Surv. 
Terr., II, No. 2, 1876, 185. (Guadalupe Island, Lower California.) 
RancE.— Guadalupe Island, Lower California. 
Genus SATHERPES Barrp. 
Catherpes Barrp, Rep. Expl. & Surv. R. R. Pac., [X, 1858, 356. Type, 
by orig. desig., Thryothorus mexicanus SWAINSON. 
Cathérpes mexicénus (SwWAINSON). 
RancE.— Arid portions of western United States and Mexico. 
