344 BIRDS OF THE ROCKIES 



Resident ; not common ; western species, coming to eastern 

 foothills. 



748. Golden-crowned kinglet. Regulus satrapa. Rare 

 summer resident ; rather common in migration ; breeds 

 only near timber-line at about 11,000. 



74,9. Ruby-crowned kinglst. Regulus calendula. 

 Abundant summer resident ; breeds from 9,000 feet to 

 timber-line. 



751. Blue-gray gnatcatcher. Polioptila c^rulea. 

 Rare summer resident ; breeds on the plains and in the 

 foothills. 



754. Tow^nsend's solitaire. Myadestes townsendii. 

 Common resident; breeds from 8,000 to 12,000 feet; 

 winters in mountains, though stragglers are sometimes 

 seen on the plains. The author saw a pair on plains near 

 Arvada, in company with a young, well-fledged bird. 



756a. Willow thrush. Hylocichla fuscescens salici- 

 coLA. Summer resident ; rather common ; breeds in foot- 

 hills and parks up to about 8,000 feet. 



758a. Olive-backed thrush. Hylocichla ustulata 

 swAiNSONn. Rare migrant. 



758c. Alma's thrush. Hylocichla ustulata alam^. 

 Rare summer resident ; in migration common. 



759- Dwarf hermit thrush. Hylocichla aonalaschk^. 

 Rare migrant. 



759a. Audubon's hermit thrush. Hylocichla aon.a- 

 LAscHK.E AUDUBoNi. Coiiimon Summer resident ; breeds 

 from 8,000 feet to timbei'-line. 



759b. Hermit thrush. Hylocichla aonalaschk^ pal- 

 LAsii. Rare migrant ; comes to the eastern edge of Colo- 

 rado, just touching range of audubom. 



