74 Wyoming B : irds. 



CINOLIDAE (Dippers). 



701. Cinclus mexicanus unicolor: Dipper. 



Fairly common summer resident on the mountain streams. 

 Its migrations are mainly vertical. During the summer they 

 nest far up in the mountains and in the winters they de- 

 scend to the foothills and streams, where they can find open 

 water. 



MIMIDAE (Thrashers, Mockingbirds, etc.). 

 The Thrashers and Catbirds nest in small bushes or shrubs. 

 They stay near the ground as a general thing and feed their young 

 upon cutworms, grubs, various kinds of caterpillars, and adult in- 

 sects. The adult birds also consume many insects, but they are also 

 fond of fruit. A Catbird now and then will feed upon honey bees. 

 These birds like to build near human dwellings and their company 

 is worth cultivating. 



References : 



1. "Useful Birds and Their Protection,'' Forebush, pp. 178-184. 



2. Farmers' Bulletin No. 54, pp. 33-3S and 39-41. 



3. Year Book of the Department of Agriculture, 1900, pp. 303- 



304 and 415-416. 



4. North American Fauna No. 33, p. 241. 



702. Oreoscoptes montanus: Sage Thrasher. 



Common summer resident throughout the sage-brush and 

 plains region. The type specimen was taken at Sandy Creek, 

 Wyoming. 

 703a. Mimus polyglottos leucopterus: Western Mockinglbird. 



Knight recorded polyglottos, but the record is here consid- 

 ered as leucopterus. Peabody records it. Uncommon in 

 this state. 



704. Dumetella carolinensis: Catbird. 



Common summer resident along the streams of the plains 

 and lower altitudes. 



705. Texostoma rufum: Brown Thrasher. 



Knight recorded it as summer resident not uncommon in 

 eastern Wyoming, especially in areas that are below 7,000 

 feet elevation. Metz, Lockwood, Clearwaters, and Percival 

 all record it. 



