530 Colorado College Publicatiok 



doubt it does, Aiken found a small Empidenax in a willow 

 thicket on the south slope of Pikes Peak, July 9-10, 1899, be- 

 lieved to be of this species, which, however, he failed to secure. 



Empidonax wrighti. Wright's Flycatcher. 



Summer resident; rather common in migration. Arrives 

 in May and has been taken as early as the sixth (1899). 



This species breeds in the mountains, probably to or 

 nearly to timberline. The nest, as found by Warren in Gun- 

 nison County, is a cup-shaped structure made largely from the 

 shredded inner bark from dead aspens built in the crotch of a 

 willow. The eggs are usually four in number and pure white 



Empidonax griseus. Gray Flycatcher. 



A single record for El Paso County, a bird taken by 

 Aiken at Fountain, May 3, 1872. 



Otocoris alpestris leucolsema. Desert Horned Lark. 



A common resident. 



The Horned Larks are found on the plains and in the 

 open country west from Green Mountain Falls. In other parts 

 of the State they are also found above timberline in summer, 

 breeding there, but we do not have any records of this sort for 

 El Paso County. While the birds are residents, it is most 

 likely that their numbers are augmented in winter by migrants 

 from farther north, and quite possible that some of our sum- 

 mer residents may go south. Beginning to breed, as it does, 

 in early April, it raises at least two broods in a season, and 

 young have been seen being fed by their parents the last of 

 June. A nest with three eggs was found near Colorado Springs 

 May 14, 1903 ; the parent was incubating then. This nest was, 

 as always with this species, on the ground, almost flush with 

 the surface, and sheltered by a tuft of grass. Allen and Brew- 

 ster mention a nest with two fresh eggs April 1, 1882, and 

 full-fledged young seen April 22 and later. September 8, 1904, 



