342 BIRDS OF THE ROCKIES 



697. American pipit. ANTHUS PENSILVANICUS. Com- 

 mon summer resident ; breeds only on summits of the 

 mountains. 



701. American dipper. CINCLUS MEXICANUS. Resi- 

 dent ; common in favorite localities ; one seen above 

 timber-line in October. 



702. Sage thrasher. OROSCOPTES MONTANUS. Summer 

 resident; breeds from plains to nearly 10,000 feet; west- 

 ern species, coming east to mountain slopes. 



703. Mocking-bird. MIMUS POLYGLOTTOS. Summer resi- 

 dent ; common locally ; mostly on plains, but sometimes 

 reaches 8,000 feet. 



704. Catbird. GALEOSCOPTES CAROLINENSIS. Common 

 summer resident; from plains to 8,000 feet. 



705. Brown thrasher. HARPORHYNCHUS RUFUS. Not 

 uncommon as summer resident ; almost restricted to the 

 plains. 



708. Bendire's thrasher. HARPORHYNCHUS BENDIREI. 

 Summer resident ; rare and local ; south central part of 

 State. 



715. Rock wren. SALPINCTES OBSOLETUS. Common 

 summer resident; breeds from plains to 12,000 feet. 



7l7a. Caii on wren. CATHERPES MEXICANUS CONSPERSUS. 

 Rare resident ; one nest recorded. 



7l9b. Baird'swren. THRYOMANES BEWICKII LEUCOGASTER. 

 Rare summer resident. 



72 Ib. Western house wren. TROGLODYTES AEDON AZTE- 

 cus. Common summer resident; from plains to 10,000 

 feet; raises two broods, sometimes three. 



722. Winter wren. ANORTHURA HIEMALIS. Rare resi- 

 dent ; no nest found. 



