'Jo6 Mitchell, Summer Birds of San Miguel County. Loct. 



Montana.— Flathead Lake*; Mjstic Lake * ; Dry Creek * ; Thompson 

 Falls * ; Fort Custer. 



Colorado.— Clear Creek * ; Twin Lakes * ; Denver ; Colorado Springs. 



South Dakota.— Hill City. 



Wyoming. — Fort Laramie ; Fort Bridger.* 



Utah.— Parley's Park.* 



Nevada.— Mountain City* ; East Humboldt Mts.* 



Texas. — San Antonio. 



Indiana — Vincennes; Wheatland. 



Mexico. — Maria Madre, Tres Marias Islands; Japana, Oaxaca. 



The writer is indebted to Dr. C. Hart Merriam for use of the 

 collection of the Biological Survey, and to Mr. Robert Ridgway 

 for access to National Museum material. 



THE SUMMER BIRDS OF SAN MIGUEL COUNTY, 

 NEW MEXICO. 



BY WALTON I. MITCHELL. 



The territory covered by this article includes the cities of Las 

 Vegas and East Las Vegas and numerous trips all over the 

 county, in the mountains, far from civilization. The altitude 

 of the country varies from 6,000 to 12,000 feet, and the clima- 

 tology in the summer months is very similar to that of the Pacific 

 Coast region, the days being warm but not close, the nights cool. 

 The rainy season begins the first of June, lasting through July 

 into August, the rain coming about eleven a. m. and clearing up 

 about one p. m., the remainder of the day being clear and bright, 

 as a rule. The county is watered by the Galhnos and Pecos 

 Rivers and numerous other small streams, none large enough to 

 be called ' creeks ' in the East. 



The vegetation consists mostly of pine and spruce and scrub 

 oak, alsogreasewood, cactus, and quaking aspens and cottonwoods 

 in a few localities. Migration is completed by the 15th of May, 

 most summer residents arriving between April 10 and May i. 



