BIRDS OF COLORADO. 87 



The most northeastern record is that of Mr. W. G. Smith whp 

 took it in lyarimer County. One was taken by Mr. Dennis Gale 

 near Boulder and a specimen was taken by Henshaw at Fort 

 Garland, August 12, during the fall migration. There is a spec- 

 imen in the Maxwell Collection, but no data as to where it was 

 capturedp 



443. Milvulus forficatus. Scissor-tailed Flycatcher. 

 Summer visitant ; rare, if not accidental. The only record 



for Colorado of this southern species is that of G. F. Breninger. 

 He writes that he saw one at Table Rock, on the Divide, south 

 of Denver. He says, "I saw the bird close to and there is no 

 doubt in the matter." 



444. Tyrannus tyrannus. Kingbird. 



Summer resident ; common. Occurs regularly only on the 

 plains and a little way up the eastern foothills to 6,000 feet. 

 Breeds throughout its range. Has been taken as a rare visitant 

 in Routt County, in northwestern Colorado. Arrives about the 

 first week in May. 



447- Tyrannus verticalis. Arkansas Kingbird. 



Summer resident ; common. Gets its English name from 

 having been originally described by Say, from specimens taken 

 on the Arkansas River [notwithstanding the statement in Baird, 

 Brewer and Ridgway's Birds of North America that they were 

 taken on the Platte]. Rather more common in eastern than 

 western Colorado, especially on the plains at the base of the 

 foothills. Scarcely found in the mountains, rising regularly 

 only to 7,000 feet, breeding from there down to the plains. 

 Arrives the first week in May and nests about the middle of 

 June. After the young are able to fly, about the first of August, 

 a few wander into the mountains to 8, 500 feet. 



448. Tyrannus vociferans. Cassin's Kingbird. 



Summer resident ; common. Occurs throughout Colora- 

 do, breeding from the plains to 7,000 feet and is fairly common 

 even to the northern boundary of the State, though more com- 

 mon in the southern two-thirds. Arrives the second week in 

 May. There are no records on the plains more than about fifty 

 miles out from the foothills. 



454. Myiarchus cinerascens. Ash-throated Flycatcher. 

 Summer resident ; rare. A western species, coming east 

 to the western edge of the plains. Breeds from the plains to 

 7,000 feet. Arrives the last of May and departs south late in 

 October. The most northeastern record is one taken at Golden 

 by Prof Osburn. 



