S84 Colorado College Publication 



June 14, 1897, and for six successive days after that, 

 Aiken observed in the top of tall cottonwoods at his home in 

 Colorado .Springs in the early morning a small grayish-olive 

 warbler, with a conspicuous white band on the wing, which 

 it seems must have been a Parula Warbler. It was seen again 

 July 7; it is presumed to have had a nest in the neighborhood. 



Dendroica sestiva aestiva. Yellow Warbler. 



Summer resident ; common. Begins to arrive the first week 

 in May, the majority coming in the second week. Departs 

 early in September. 



This species is common almost everywhere in the County, 

 at least where there is any sort of tree or brushy growth, and 

 ranging up to above 9,000 feet. It builds its nest in the low 

 bushes and thickets along the streams. Aiken found a nest with 

 three eggs and one of the Cowbird near Bear Creek, June 17, 

 1898. June 3, 1913, a nest with 4 eggs was found near Ivywild. 

 It is one of the most common summer birds in Monument 

 Valley Park. Many of our breeding birds are very pale and 

 several skins submitted to Mr. Brewster were pronounced 

 by him to be "nearly typical sonorana." 



Dendroica coronata. Myrtle Warbler. 



Migrant ; not common. Arrives about May 1 ; earliest 

 date April 17, 1907. There do not seem to be any autumn 

 records. 



Dendroica auduboni. Audubon's Warbler, 



Summer resident in the mountains ; common. Arrives the 

 last of April and soon becomes abundant ; the earliest record 

 is April 16, 1872. Departs the last of September, the latest 

 date being October 2, 1913. 



This species breeds commonly in the mountains from about 

 8,000 feet to nearly 12,000 feet. Minot found a nest of the 

 Audubon's Warbler at Seven Lakes, June 24, 1880, which he 



