Wyoming Birds. 75 



TROGLODYTIDAE (Wrens). 



The Wrens are almost entirely insectivorous. They feed upon 

 caterpillars, grasshoppers, beetles, and bugs. All are valuable birds ; 

 the House Wren is particularly so. 



References : 



1. "Useful Birds and Their Protection," Porebush, pp. 292-294. 



2. Year Book of the Department of Agriculture, 1897, p. 670. 



3. Biological Survey Bulletin No. 54, pp. 35-36. 



4. Year Book of the Department of Agriculture, 1900, pp. 413- 



415. 



5. Biological Survey Bulletin No. 30, pp. 65-66. 



715. Salpinctes obsoletus obsoletus: Rock Wren. 



Common summer resident along all the foothills, and in 

 places extending out on the plains. 



717a. Catherpes mexicanus conspersus: Canon Wren. 



Knight had only one authentic record for this state, but 

 evidently the bird has recently increased or extended its 

 range, or both. Both Richard and Mtetz report it as a 

 fairly common summer resident in northern Wyoming. 

 Blackwelder found it in the Teton region. Lockwood has 

 seen a bird in the vicinity of Laramie which he thinks was 

 the Canon Wren. 



721a. Troglodytes aedon parkmani: Western House Wren. 



Common summer resident throughout the state at the lower 

 and middle altitudes. 



722a. Nannus hiemalis pacificus: Western Winter Wren. 



Lockwood and Blackwelder are the only recent observers 

 who have found this bird. Knight recorded that it was 

 probably a rare summer resident. 



724. Cistothorus stellaris: Short-foilled Marsh Wren. 



"Accidental. Mr. Bond of Cheyenne has a single skin in 

 his collection that has been identified at Washington." 

 (Knight.) 



725. Telmatodytes palustris palustris: Long-billed Marsh Wren. 



Peabody has found a Wren which he thinks should be re- 

 corded as this species. Lockwood and Knight also record- 

 ed it. 



