166 



TIIK CONDOR 



Vol. X 



regularly only to 7000 feet. Breeding from there down to the plains." This 

 would still leave a large part of the County within their breeding range. I am led 

 to believe that both forms breed commonly as I have found Kingbirds nesting 

 abundantly from 4800 to 8500, but have not felt justified in collecting a large 

 enough series to determine definitely their relative abundance or range. Miss 

 Eggleston writes: "Both verticalis and vociferans breed freely near Grand Junction 

 tho verticalis is more abundant." Mr. Sullivan says, "Both kinds are very plenti- 

 ful and extremely noisy generally about August 1. After that date they thin out 

 very rapidly. Extreme dates of observation are April 11 and August 11. 



Tyrannus vociferans. Cas- 

 sin Kingbird. Summer resi- 

 dent, common. This species 

 together with the preceding 

 are among the most common 

 breeders found in the County, 

 and the dates of arrival, nest- 

 ing, food habits, etc., of the 

 two species are practically- 

 identical. Arrives the first of 

 May and breeds from Ma_v 15 

 to July 1, according to alti- 

 tude, selecting various nest- 

 ing sites. I have found nests 

 in scrub-oak, cottonwoods, 

 quaking-asps, and gate frames, 

 on log fences, and on the top 

 rail of a large farm gate. The 

 birds are of a sociable disposi- 

 tion, nests being rarely found 

 any great distance from human 

 habitation. Prof. Cooke states 

 that both species breed up to 

 8000 feet; I have found a 

 Kingbird breeding commonly 

 at 8000 feet and as vociferans 

 is more typically a mountain 

 bird I have attributed these 

 records to this species. 



Myiarchus cinerascens. Ash- 

 throated Flycatcher. Writing 

 of this western species Mr. 

 Sullivan says: ' 'Summer resi- 

 dent. Not common; rather scarce. Frequenter of thickets, brush and low woods. 

 Have never been able to find their nests; am certain they breed, for I have seen 

 their young in the brush, and the adults feeding them." Extreme dates he gives 

 as May 2 and August 22. I have no other information regarding this species. 



Sayornis saya. Say Pewee. Summer resident, abundant. A characteristic 

 bird of the County. Every ranch has its pair (or possibly more) of Phoebes during 

 the entire summer nesting in the barns, under sheds or in outbuildings. In the 

 lower parts of the County it is an early arrival. Mr. Sullivan reports it from Grand 



ADUIvT ARKANSAS KINGBIRD ON NEST BUILT BETWEEN 

 DIAGONAL BRACES OE LARGE EARM GATE 



