150 Wyoming Bxperiment Station. 



are the following records for Wyoming: Coues, Henry's 

 Fork and Snake river; Aiken, Sherman; Jesurun, Douglas; 

 Williston, Lake Como, Merriam, Yellowstone park; Drexel, 

 Fort Bridger. There afe five skins in the University collec- 

 tion that have been taken on the Laramie plains. 



700. Anthus spragueii (Aud.). 



Sprague's Pipit. 



Thus far this species has been reported only by Mr. Bond 

 of Cheyenne, who has two skins in his collection that were 

 taken April 24, 1888. This will probably prove a rare species 

 in Wyoming, but not accidental. 



DIPPERS. 



701. Cinclus mexicanus Swains. 



Dipper. 



Resident and quite common along the mountain streams. 

 In summer it reaches the very head of the mountain streams, 

 but whether it breeds at high altitudes has not been deter- 

 mined. The highest point that I have observed a nest is 10,000 

 feet. This bird loves rough canons, rapids and waterfalls and 

 appears to enjoy especially the spray-covered coves and nooks. 

 No lover of birds could fail to see this curious little fellow 

 along all of the mountain streams. There are the following 

 records of its occurrence in the state : Drexel, Fort Bridger 

 (abundant) ; Coues, seven specimens from Laramie peak; 

 Jesurun, Douglas; Bond, Cheyenne; Merriam, Yellowstone 

 park; Grinnell, Yellowstone park; Aiken, Sherman. I have 

 observed this bird in the following localities: Gros Ventre 

 river, Jackson Hole, Big Wind river, Meeteese creek, Tongue 

 river. Little Horn river. Ten Sleep creek. Clear creek, Little 

 Laramie river, "'Big Laramie river, Rock creek, Sweetwater 

 river and Ham's Fork. 



While I have not made careful observation on the nest- 

 ing habits of this species I have found three nests, all of which 

 were attached to nearly vertical walls in canons and in shape 



