526 Colorado College Publication 



Tsnrannus vociferans. Cassin's Kingbird. 



Summer resident ; not common. Arrives and departs 

 at about the sarne times as the two preceding species. 



Cassin's Kingbird is not nearly as common as the pre- 

 ceding species, being the least common of our three Kingbirds, 

 and thus its distribution through the County is not quite so 

 well known, though it inhabits the same localities. Its com- 

 parative abundance with the Arkansas at Ramah has already 

 been mentioned under that species. Lloyd Shaw noted a pair 

 breeding near Prospect Lake, June 1, 1911. 



Aiken's notes compare the habits of this and the preceding 

 species as follows : 



"Although the two species resemble one another so closely 

 in appearance there is much difference in the manners and 

 actions of the Cassin's and Arkansas Kingbirds. The Arkan- 

 sas Kingbird comes out to meet the intruder and hovers about 

 in the air, chattering continually; they hover about the top 

 of a tree and alight upon the topmost twigs. Cassin's King- 

 bird is more sedate, less active, and less noisy, and has less of 

 the fluttering motions. It alights usually upon the side branch 

 of a tree or in the body of it, and often sits quietly, though 

 usually their call note, cu-ver-o, is uttered at intervals of four 

 or five seconds in a harsh tone." 



Myiarchus cinerascens. Ash-throated Flycatcher. 



The only record we have of this species for El Paso Coun- 

 ty is a specimen taken by Aiken May 21, 1872, near 'Red Creek 

 Caiion, close to the Fremont County line, several other being 

 seen at that same time. It frequents pinon and cedar regions, 

 and probably is not uncommon in that portion of the Countv 

 as a summer resident. One was seen by Warren June 6, 1909. 

 ar Glendale, in Fremont County, but only a few miles south- 

 west of the above-mentioned locality. 



