I20 BIRDS OF COLORADO. 



705. Harporhynchus rufus. Brown Thrasher. 



Summer resident; not uncommon. Almost confined to 

 the plains and only east of the mountains, which it barely pen- 

 etrates to 7,500 feet. Arrives about the middle of May and 

 breeds throughout its range. 



708. Harporhynchus bendirei. Bendire's Thrasher. 



Summer visitant; accidental. One shot by Brewster at 

 Colorado Springs, May 8, 1882. The first and only record north 

 of Arizona. (B. N. O. C. VIII. 1883, 57.) 



715. Satpinctes obsoletus. Rock Wren. 



Summer resident; common. More particularly a bird of 

 the foothills and mountains, but extending eastward over all 

 the plains region to Kansas. Breeds on the plains, but more 

 commonly in the mountains from 6,000 to 9,000 feet ; much less 

 commonly to 12,000 feet. Arrives on the plains the middle of 

 April and laying begins the latter part of May. At the upper 

 part of its range each of these dates is about a month later. 

 Leaves the mountains in September and the State the latter part 

 of October. 



717a. Catherpes rnexicanus conspersus. Canon Wren. 



Resident; rare. There are but few records of this species 

 in Colorado. It comes east to the eastern base of the Rocky 

 Mountains and north as far as Boulder where A. W. Anthony 

 saw several November 23, 1892. In the winter it has been 

 noted by C. E. Aiken at Fountain and the present writer saw 

 it the winter of 1895-6 in the Canon of the Grand River near 

 Glenwood Springs. Rather more common in the mountains of 

 south-central Colorado where, according to W. P. Lowe, it 

 breeds and is occasionally seen as high as 8,000 feet. The only 

 nest recorded to date is the one with five fresh eggs found by 

 H. D. Minot at Manitou June 8, 1880. ( B. N. O. C. V. 1880, 

 223.) 



719b. Thryothorus bewickii leucogaster. Baird's Wren. 

 Summer resident ; rare. Only four records for Colorado 

 and all on the plains east of the mountains ; known however 

 from southern Utah and Arizona and hence will probably yet 

 be found in the lowest portions of western Colorado. Capt. P. 

 M. Thorne shot one at Fort Lyon, April 27, 1886. C. E. Beck- 

 ham took one at Pueblo, H. G. Hoskins writes that he has seen 

 several near Burlington and W. G. Smith took it at Loveland. 



721b. Troglodytes aedon aztecus. Western House Wren. 



Summer resident; common. Occurs in migration over all 



of Colorado below the pine region and though it breeds through- 



