The Birds of El Paso County, Colorado 603 



22-23, 1899. It is very generally distributed, breeding where- 

 ever found, on the plains as well as in the mountains to timber- 

 Hne. It often uses deserted woodpeckers' holes for nesting 

 sites. Aiken found a nest with young in a woodpecker's hole 

 en Turkey Creek, May 29, 1872. His notebook says it was 

 seen occasionally (near ranch on Turkey Creek) throughout 

 the winter of 1872-3, and that it was very common in January, 

 1873. 



In the early days of Colorado Springs this Bluebird bred 

 readily in houses put up for it, but nowadays it has no show 

 against the omnipresent English Sparrow. Like the preceding 

 fpecies this Bluebird congregates in flocks at the time of the 

 May storms. 



ADDENDA 



H. C. Oberholser in "A Monograph of the Genus Chor- 

 deiles Swainson, Type of a New Family of Goatsuckers," U. 

 S. National Bulletin No. 86, 1914, has described a new sub- 

 species of Nighthawk, Chordeiles virginianus howelli, and re- 

 fers the Colorado bird to it. If the form proves to be a valid 

 one our El Paso County Nighthawks should be known by that 

 name. 



Regarding two other species Mr. Oberholser has given us 

 the following notes : 



He informs us that he now considers all the Horned Larks 

 breeding in Colorado, and most of the winter birds, to be 

 Otocoris alpestris enthymia, the Saskatchewan Horned Lark, a 

 race not as yet adqiitted to the A. O. U. Check-List. 



He also finds that the Savannah Sparrows of Colorado 

 are not Passerculus sandwichensis alaudimis, but P. a. neva- 

 densis Grinnell, the Nevada Savannah Sparrow. 



