112 BULLETIN 195, UNITED STATES NATIONAL MUSEUM 



A fitting closing is this winter picture, drawn by Muir's (1894) 

 matchless pen : 



One mild winter morning, when Tosemite Valley was swept its length from west 

 to east by a cordial snowstorm, I sallied forth to see what I might learn and enjoy. 

 A sort of gray, gloaming-lilje darkness filled the valley, the huge walls were out of 

 sight, all ordinary sounds were smothered, and even the loudest booming of the 

 falls was at times buried beneath the roar of the heavy-laden blast. The loose 

 snow was already over five feet deep on the meadows, making extended walks 

 impossible without the aid of suowshoes. I found no great difficulty, however, in 

 making my way to a certain ripple on the river where one of my ouzels lived. He 

 was at home, busily gleaning his breakfast among the pebbles of a shallow portion 

 of the margin, apparently unaware of anything extraordinary in the weather. 

 Presently he flew out to a stone against which the icy current was beating, and 

 turning his back to the wind, sang as delightfully as a lark in springtime. 



DISTRIBUTION 



Range. — Alaska to Guatemala ; nonmigratory. 



The dipper is found north to northern Alaska (Kobuk Kiver 

 Valley, tributaries of the upper Atlatna River, and Eagle) ; central 

 Yukon (Forty-mile, Ogilvie Range, and the forks of the Macmillan 

 River) ; northern British Columbia ( Atlin and Fort Halkett) ; Alberta 

 (Athabaska River, about 150 miles northwest of Stony Plain, and 

 Edmonton). East to Alberta (Edmonton and Calgary); Montana 

 (Glacier Park, Belt Mountains, and Bozeman) ; Wyoming (Wolf, 

 Sundance, and Laramie Mountains) ; South Dakota (Black Hills) ; 

 Colorado (Gold Hill, Golden, Manitou, and Wet Mountains) ; New 

 Mexico (Sangre de Cristo Mountains, Taos, and Ruidoso) ; Chihuahua 

 (Cerro Prieto) ; alpine region of Veracruz ( Jalapa and Rio Blanco) ; 

 Puebla (Mount Popocatepetl) ; Oaxaca (Oaxaca) ; and Guatemala 

 (San Mateo, Los Arcos, and Tecpam). South to Guatemala (Ton- 

 tonicopam and Tecpam). West to Guatemala (Tecpam and Bar- 

 rillas) ; Oaxaca (Oaxaca) ; Mexico (Temascaltepec) ; Chihuahua 

 (Pinos Altos, Chuhuichupa, and Pacheco) ; Arizona (Huachuca 

 Mountains, Santa Catalina Mountains, Salt River Wildlife Refuge, 

 Oak Creek, and Grand Canyon) ; the Coast Range in California (San 

 Diego County, Carpenteria, San Francisco Bay region, and Hoopa 

 Valley, Humboldt County) ; Oregon (Trail and Tillamook Bay) ; 

 Washington (Vancouver, Olympic Mountains, and Belli ngham) ; 

 British Columbia (Vancouver Island and Graham Island, Queen 

 Charlotte Islands) ; and Alaska (Sitka, Kodiak Island, Unalaska 

 Island, Nunivak Island, and Kobuk River). 



The range as outlined applies to the entire species, which has been 

 divided into three subspecies or geographic races. The typical race, 

 the Mexican dipper {G. m. mexwanus)^ occurs from the Huachuca 

 Mountains in Arizona to southern Mexico ; the dipper ( C, m. unicolor) 



