OCT., I8n9.) BIRDS. 133 



They were u.siially seen in early eveiiiuji' wiieu they came to drink from 

 the little stream.s in the forest, and were always silent and ratlier shy. 

 Late in July and early in August they were seen with arctic l)luebirds 

 by Walter Iv, Fisher at and below timberline near Mud Creek Canyou. 

 They probably winter in the Jauipers in Shasta Valley, where W. H. 

 Osgood saw Hieni September 17 to 20, and where I saw dozens feeding 

 on the juuiper berries and singing freely September "29, Late in July, 

 1883, C. H. Townseud found one of these birds "frozen in the snow and 

 ice which filled the crater of the extinct volcano of Shasta." 



133. Hylocichla aonalaschkae auduboni. Dwarf Hermit Thrush. 

 Evidently breeds in the dark Shasta fir forest of the mountain and 



in the damp forest of white and Douglas lirs near Sisson Tavern, where 

 Miss Merriam heard them in full song the middle of July. At Wagon 

 Camp W. II. Osgood shot one July 17; and near Si^uaw Creek Camp 

 I shot another September 1*0. C. H. Townseud records it from the 

 southern slo[»e of Shasta under date of July 25. 



134. Merula migratoria propinqua. Western Kobin. 



llobins were fairly common at Wagou Camp, where we heard their 

 evening song the day of our arrival, July 15, and where they were seen 

 carrying food to young July -6 (F. A. M.). Higher up they were seen 

 from time to time, but were not common. Along the upper part of 

 Mud Creek Canyon Walter K. Fisher found them "fairly common but 

 erratic" the latter part of July and tirst few days of August. At Squaw 

 Creek Camp, in the alpine liendocks, we saw a flock on the moruiug 

 of Augu.st 12, and others Sei)tember 1.5. Just below timberline on 

 Panther Creek a few were seen migrating September 18. In Shasta 

 Valley they were common among the ju-.ipers September 29. At Sis- 

 son they are common breeders, and a i'ew w ere seen whenever any of 

 our party were there, from July 14 until the end of September. A nest 

 containing three eggs was found July 13 by W. H. Osgood. 



135. Sialia mexicana occidentalis. Western Bluebird. 



A common breeder at Sisson, where families, including lately fledged 

 young, haunted the fences the first half of September (R. T. Fisher). 

 In Shasta Valley W. H. Osgood found them common September 17 to 

 20, and a few small flocks were seen by me among the junii)ers Septem- 

 ber 29. At Sisson the si)ecies was common the latter part of Septem- 

 ber. In 1883 a nest containing nearly grown young was found by C. 

 H. Townseud in a post hole in tiie ground at Sisson Tavern late in 

 July. 



13(J. Sialia arctica. Mountain Bluebird; Arctic Bluebird. 



A common breeder on the higher slopes of Shasta, where they were 

 constantly seen in July and early August, but rarely afterwards. On 

 our tirst visit to timberline, July 17, they were very abundant on the 



