VoL wi9 XVI ] Taverner, Birds of Red Deer River, Alta. 263 



aphides on the cotton woods. Neither Farley or Horsbrough report this 

 species in the breeding season though Fleming has Red Deer specimens taken 

 June 10. 



179.* Penthestes atricapillus. Black-capped Chickadee. — Chick- 

 adees were fairly common all along the river. In most cases they seemed 

 to be cruising about in family groups not yet separated. Five specimens all 

 juvenile, from Camps 1, 3, 8 and all have the extreme white feather margi- 

 nations and long tails of P. a. septentrionalis. 



180. Penthestes hudsonicus. Hudsonian Chickadee. — Under P. 

 hudsonicus, Horsbrough lists this species as a common resident and re- 

 ports a nest. I have no further records for the vicinity. 



181.* Regulus calendula. Ruby-crowned Kinglet. — Occasional 

 birds seen at Camp 11 on the Little Sandhill Creek from the end of August 

 to the end of Young's stay becoming more common latterly. Specimen, 

 Camp 11, August 29. 



182.* Hylocichla fuscescens. Wilson's Thrush. — Fairly common 

 as far down the river as Camp 9 below Rosedale Mines. Most of the 

 records are based upon their notes as all thrushes were exceedingly shy. 

 Two specimens, Camp 1\. These are rather more richly colored than other 

 birds from about Edmonton, less olive and more nearly like eastern speci- 

 mens. I am doubtful as to the exact subspecific status of these specimens 

 but refer them to H. s. salicicola with reservations. 



183.* Hylocichla ustulata. Olive-backed Thrush. — Thrushes 

 though common enough were very difficult to identify as they were very 

 shy and only fleeting glimpses were caught of them as they slunk away 

 through the brush. One Olive-back was taken at Camp 11, Little Sandhill 

 Creek, September 17. Horsbrough reports nests at Sylvan Lake. 



184.* Hylocichla guttata. Hermit Thrush. — For the above 

 reasons 1 only care to specifically pronounce upon the one bird taken at 

 Camp 11, Little Sandhill Creek, September 22. 



185.* Planesticus migratorius. American Robin. — Common all 

 along the river. At Camp 11, Little Sandhill Creek, Young says they fed 

 extensively upon Buffalo berries. Specimens, Camp 11, September 7 to 21. 

 Horsbrough refers his birds to the western form P. m. propinquus, a rather 

 questionable decision. 



186.* Sialia currucoides. Mountain Bluebird. — Some Bluebirds 

 glimpsed in the outskirts of the city of Red Deer and whilst driving from 

 the river to Nevis, Camp 4, we attributed to this species. Several times 

 below Camp 4 we noted individuals amongst the eroded cliffs and hills 

 but could not get close enough to identify them satisfactorily. It was not 

 until we reached Camp 11, on the Little Sandhill Creek that the species 

 was certainly recognized. Here we found them common, feeding upon 

 Saskatoon berries, and later according to Young on Buffalo berries. They 

 remained common up to the time he left and he noted a flock of one hun- 

 dred birds, September 8. Seven specimens Little Sandhill Creek, July 20 

 to September 8. Both Farley and Horsbrough report it common at Red 

 Deer. 



