The Birds of Wyoming. 149 



abundant observations on this variety. Living as it does in 

 dense thickets and being extremely shy accounts for so few 

 records. Jesurun reports it common at Douglas; West has 

 presented the University with a specimen taken at Buffalo; 

 the National Museum No. 38402 was taken at Laramie peak; 

 Cary reports them from near Newcastle. I have observed 

 these birds in the following places: Sundance, Lander, Lin- 

 den, Guernsey, Horseshoe creek and Clear creek. 



685. Wilsonia pusilla (Wils.). 

 Wilson's Warbler. 



Summer resident ; not uncommon. Breeds from- 7,000 to 

 9,000 feet. There are the following records: Drexel, Fort 

 Bridger; Coues, Henry's Fork, Lower Geyser Basin and Te- 

 ton lakes; National Museum No. 87997 taken at Fort Fetter- 

 man by Shufeldt; No. 8799 taken at Fort Laramie; Bond, 

 Cheyenne ; Jesurun, Douglas. There are three skins in the 

 University collection that were taken in Big Horn, Albany 

 and Carbon counties respectively. I have observed this spe- 

 cies in the Bear Lodge, Absaraka and Big Horn mountains. 



687. Setophaga ruticilla (Linn.). 

 Redstart. 



Summer resident ; not common. Reported by the follow- 

 ing collectors: Drexel, Fort Bridger; Coues (Hayden) Wind 

 river. La Bonte creek ; Jesurun, Douglas ; Bond, Cheyenne ; 

 West, Buffalo; Aiken, Sherman. There is a single specimen 

 in the University collection that was taken on the Laramie 

 mountains. 



WAGTAILS. 



697. Anthus pensilvanicus (Lath.). 

 Pipit. 



Probably a summer resident. They are quite abundant 

 in marshy places for the last week of April and the first two 

 weeks in May. No one has reported them breeding. There 



