402 APPENDIX G 



Nyarling River, July 9 and 10, and lower Little Buffalo River, 

 July 12. It was last noted near Fort Resolution on July 16, 

 being then in full song. 



Wilsonia jwsilla pusilla (Wilson) . Wilson's Warbler. 



Wilson's black cap was noted but once at our camp on 

 Artillery Lake at the tree limit. Here a specimen was taken in 

 an alder thicket on September 5. 



Anthus rubescens (Tunstall). Pipit. 



This species was observed in migration at Edmonton on May 

 10. It was next seen, apparently on its breeding grounds, on 

 the north shore of Great Slave Lake, east of Mountain Portage, 

 on July 24. On reaching Artillery Lake it was evident that we 

 had found the true home of the bird, for it was common there, 

 August 3 to 5. It was noted also at a number of points on Aylmer 

 Lake, August 13 to 26, and on Clinton-Golden Lake, August 

 28 to 30. During our return trip we again found it common on 

 Artillery Lake during the early days of September, and we ob- 

 served it also at Fort Reliance on September 16 and 17, and 

 near The Narrows, Great Slave Lake, on September 19. 



Sitta canadensis Linn. Red-breasted Nuthatch. 



The Canada nuthatch was observed only during our south- 

 ward trip in the autumn, when individuals were observed as 

 follows: Poplar Point, Athabaska River, October 13; near Brule" 

 Rapid, October 23, and below Pelican Rapid, October 26. 



Penthestes atricapillus septentrionalis (Harris). Long-tailed 

 Chickadee. 



This chickadee was first observed at Edmonton on May 10, 

 and was not again seen until June 10, when it was noted at 

 Smith Landing. A few were seen on the Buffalo River Portage 

 on July 6, and on Little Buffalo River on July 7. We saw no 

 more until we reached lower Slave River during our return trip, 

 when we noted the species on September 28 and 29. Others 

 were seen near Point Brule", October 1 and 2, and near Fort 



