1 91 8.] Buffalo Lake, and Red Deer Districts. 493 



nests later. One on the 18th coutaiiied four young, covered 

 with white downy fluff. At Buffalo Lake, Cook observed a 

 pair on 6 June, and states that a few breed in the locality. 



Lanius borealis. Northern Shrike. More abundant 

 than in the previous season, particularly so near Mirror. 

 Like the Sparrow-Hawks (^'. s. sparverius), they like the 

 telegraph-poles and wires from which to survey the sur- 



rounding couutr 



y- 



Vireosylvia Philadelphia. Philadelphia Vireo. I found 

 a nest at Sylvan Lake on 18 June, 1916, containing four 

 eggs, which I believe to belong to this species. It was 

 suspended from the slender branch of a small bush not 

 more than four feet above the ground. Three eggs of the 

 Cowbird crowded the structure to its fullest capacity. 



Dendroica aestiva aBstiva. Yellow Warbler. One of the 

 commonest members of this family. I found three nests on 

 13 June, 1916, at Sylvan Lake, one with five eggs and the 

 others unfinished. Later on I found more nests, the birds 

 being particularly fussy when I approached near them. 

 They were usually built at about four to five feet above the 

 ground, though a few were even twelve to fifteen, but the 

 site was then against the trunk of a fair-sized poplar-tree. 

 Some of these nests held small young about the 15th of 

 the same month. 



Dendroica coronata. Myrtle Warbler. A few pairs 

 frequented the woods around my dwelling in early May. 

 On 29 April, 1916, several were seen by Mrs. Cassels near 

 the town, and Cook (Buffalo Lake) noticed one on 15 May. 



Piranga ludoviciana. Western Tanager. Fairly rare. 

 1 saw several in the woods around my house on 29 May, 

 1916, and at Sylvan Lake found a nest on 1-A June. This 

 was placed amongst the slenderest branches of a young and 

 thin poplar-tree, about forty feet from the ground, and quite 

 impossible to investigate. Another nest close by was either 

 an old one or else deserted, but was only about twenty feet 

 above the lake-side. At the best of times, the structure is 



