Vol "5i9 XVI ] Taverner, Birds of Red Deer River, Alta. 5 



passed the " Canyon." Here we remained until July 4, working the 

 uplands as well as the valley, and obtained a fairly representative 

 collection of the birds of the locality and an idea of the general 

 conditions. Most species were breeding and all were very shy and 

 retiring. We were further handicapped by being disinclined to 

 take adults having families dependent upon them. This increased 

 the work and limited practical results. From here on we made 

 but short stops at varying distances and except at Camp 4, near 

 Nevis, and at Camp 6, Tolman's Ferry, confined our attentions to 

 the river valley itself. 



At Camp 11, after the writer left, Young made a general survey 

 of the locality, worked thoroughly all the surrounding territory 

 within walking distance and made as complete a collection as possi- 

 ble. As he remained until the fall migrations were well under way 

 he added many species to our list. His material is of exceptional 

 interest as can be seen in the following annotations. 



I have included in the list references to the collections made by 

 Mr. Geo. Sternberg in 1915 and 1916 as well as some specimens 

 collected by Mr. Chas. Horsbrough at Alix, in the vicinity of the 

 upper river, besides occasional other notes from the same general 

 locality. Those accredited to G. F. Dippie are cited, unless other- 

 wise stated, from the ' Catalogue of Canadian Birds, ' J. and J. M. 

 Macoun, 1909. A good many specimens from this neighborhood 

 are extant in various collections and should any reader of 'The 

 Auk ' have additional material or information I should be pleased 

 to have it published as addenda to this list. 



Since writing the above, a paper entitled ' Further Notes on the 

 Birds Observed at Alix, Buffalo Lake and Red Deer, Alta., in 1915 

 and 1916' by Chas. B. Horsbrough, has appeared in 'The Ibis' for 

 July 1918, pp. 417-496, giving annotations on ninety-five species 

 and calling attention to a previous paper by the same author, ' Or- 

 nithological Notes from Alix and Buffalo Lake Districts, Alta., in 

 1914,' Ibid., October, 1915, pp. 670-689, annotating eighty species. 

 From these two lists much additional data has been extracted and a 

 number of species added to our list. Mr. Horsbrough's rather free 

 use of subspecific designations is a little disconcerting. In a few 

 cases he has given his authority for his decisions but the majority 

 are evidently made on geographical assumptions and hence whilst 



