304 Warren, Birds of the Elk Mountain Region, Colo. [july 



if incubating. A few days later I saw one or more at Hillside Ranch, and 

 on June 15 a female was collected on the ridge north of Crested Butte 

 Mountain among aspens. June 23 and 24 I saw the species at Marble. 

 I should consider it a not uncommon summer resident and breeder, going 

 at least as high as 9,500 feet. 



June 28, 1901, I found a nest near my camp north of Deep Creek in the 

 Muddy country; it was in an aspen tree about seven feet above ground, 

 saddled on a small branch, and was constructed from the fine fibrous bark 

 from dead aspens; it contained 3 eggs at the time. July 13 the young were 

 showing pin feathers. 



Empidonax wrighti. Wright's Flycatcher. — Summer resident; 

 appears to be common to at least 9,500 feet. In 1900 I found three nests 

 of this species, one at Hillside Ranch, one on the Irwin road west of Crested 

 Butte, and one by the Gothic road not far from Gothic. Each of these 

 nests contained three eggs. The first was found June 17, that near Gothic 

 June 29, and the other July 2. That at Hillside was observed regularly, 

 and the following data noted: June 24, eggs still unhatched; July 1, 3 

 young; July 8, young pretty well feathered and very lively; they were 

 decidedly yellow below. The parent came to nest to feed young while I 

 was close by; July 15, nest deserted. 



At the nest on the Irwin road the young were just hatching July 9; 

 on 19th were getting well feathered; July 23 I found the nest destroyed 

 and the young gone, work of a cat, I suspect. 



In 1915 this species was noted several times; one was collected at about 

 9,500 feet on the northwest slope of Crested Butte Mountain, June 15. 

 June 10 I discovered an empty nest at Hillside Ranch, which at the time 

 I supposed to be a MacGillivray's Warbler's, though the height from the 

 ground, 7 feet, was quite unusual for that species, but a pair of the Warblers 

 were about the willow thicket, evidently having a nest there, and I saw the 

 female flush from so close to the nest that I thought she came from it. 

 When I found the nest to be empty I at once left it without any further 

 careful examination, not wishing to chance causing the bird to desert the 

 nest. On the sixteenth I thought the set of eggs should be complete, so 

 went to the nest again. The Warblers were about as before, but when 

 I climbed to the nest and found two pure white eggs instead of the 

 spotted ones I had expected I saw my error and after examining the nest 

 decided it was a Flycatcher's. That was in the morning. In the after- 

 noon as I passed by a bu-d was on the nest, but so much alcove me and 

 in such a position that I could not see much more than the top of her head 

 and a whitish eye ring; she might very well have been a female MacGilli- 

 vray's with the view I then obtained. The morning of the 18th she was 

 on the nest again, sitting very close, even staying on when I cut twigs close 

 beside the nest which interfered with photographing. The nest then con- 

 tained four fresh eggs. The nest, eggs, and female were collected, and are 

 now in the Colorado CoUege collection. The nest is constructed almost 

 entirely of bark fibre, lined with a little haii-, soft vegetable material, and a 



