BIRDS OF CODORADO. 
87 
The most northeastern record is that of Mr. W. G. Smith who 
took it in Larimer 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 
captured. 
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. 
Siiininer 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 clnerascens. 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. 
