Vol 'i9i9 XVI ] Taverner, Birds of Red Deer River, Alia. 7 



Camp 6. — 97.20 Miles below Red Deer, Tolman's Ferry, July 

 11-13. 



Camp 7.— 132.00 Miles below Red Deer, Drumheller, July 13- 

 14. 



Camp 8. — 139.50 Miles below Red Deer, near Rosedale Mines, 

 July 14-17. 



Camp 9.— 163.20 Miles below Red Deer, 31-20 below Drum- 

 heller, July 17-18. 



Camp 10. — 213.60 Miles below Red Deer, 1 mile above Steve- 

 ville, July 18-19. 



Camp 11. — 217.50 Miles below Red Deer, 3 miles below Steve- 

 ville, July 19-September 26. 



1.* .fficrimorphorus occidentalis. Western Grebe. — Two birds 

 collected by Horsbrough, Buffalo Lake, near Alix Alta, June 1914, where he 

 reports them breeding commonly. One of these, a female, is the form 

 with slender recurved bill, once called Clarke's Grebe, M. clarki. 



2* Colymbus holboelli. Holbcell's Grebe. — Three seen on 

 Brock's Lake at Camp 1 : a female taken contained an egg ready to lay. 

 Seen also on small pond near Bullocksville with young and on small waters 

 in vicinity of Nevis. Though lakes apparently admirably adapted to them 

 were examined on the upper levels at Tolman Ferry, no birds were noted 

 upon them. Horsbrough reports them rare on Buffalo Lake but common on 

 many smaller waters. 



3.* Colymbus auritus. Horned Grebe. — A pair with nest con- 

 taining a partially hatched brood was found on a small slough near Camp 1 

 and all collected. Only two seen thereafter at Camp 11 after the writer 

 left, one juvenile being taken in extremely emaciated condition. This 

 can probably be explained by the extremely muddy condition of the water 

 preventing the bird from seeing its prey. 



4.* Colymbus nigricollis. Eared Grebe. — We saw no Eared 

 Grebe ourselves but we have a specimen taken by Charles Horsbrough at 

 Buffalo Lake, near Alix, June 11, 1914. He mentions the species in neither 

 of his lists. 



5. Podilymbus podiceps. Pied-billed Grebe. — Horsbrough re- 

 ports a pair breeding on a small pond near Alix and commonly on Buffalo 

 Lake in 1914. 



6. Gavia immer. Common Loon. — Reported as being occasionally 

 seen on Brock's Lake, Camp 1, on whose shores we found the decomposed 

 remains of a single specimen. Horsbrough does not regard it as common. 



7.* Larus delawarensis. Ring-billed Gull. — After July 8 at 



* The asterisk denotes that specimens were taken or are in the collection of the Museum 

 of the Geological Survey of Canada. 



