1908.] BIKDS. 471 



miles south of MacTavish Ray. August 22. While ascending the 

 Mackenzie in the autumn I saw a single bird a short distance above 

 Nahanni River, October 15. It made a short flight past the canoe 

 and returned to the woods. 



In the spring of 1004 J. W. Mills noted the first yellowrump at 

 Willow River, near Fort Providence, on May 2. It was next seen 

 there May 3, and was common by May 7. Females were first seen 

 May 12, and both sexes were common up to about May 17, after 

 which date the species was less often observed. A series of specimens 

 was collected by Mills and Jones. At Fort Simpson I first saw it 

 May 7, next on May 0, and found it common May 10. The females 

 first arrived on May 13. when the species had become abundant. It 

 was seldom observed during the latter part of the month. During 

 my trip down the Mackenzie I saw it but twice, taking specimens on 

 Manito Island, near Fort Good Hope, June 23, and at Fort McPher- 

 son, July 3. 



Ross recorded this warbler as occurring in the Mackenzie River 

 region north to La Pierre House, and as having been taken at Fort 

 Simpson.' 7 Baird recorded specimens from Fort Rae, Fort Simpson, 

 Fort Good Hope (May 25), La Pierre House, and Anderson River.'' 

 In the latter region it was not numerous, and it occasionally nested 

 on the ground. Russell took specimens at Fort Chipewyan, May 24 

 to 30, 1893. d Macoun states that Spreadborough observed two at the 

 upper crossing of the Lobstick, about 90 miles directly west of Ed- 

 monton, Alberta, where the birds were breeding, on June 17, 1898; 

 and that large flocks were observed at Henry House on September 2 

 of the same year/' Seton records the bird from the tree limit on 

 Artillery Lake, where a flock was observed on September 3, 1907. ^ 



Dendroica auduboni (Towns.). Audubon Warbler. 



In 1894 J. Alden Loring reported this species common in flocks at 

 Banff, Alberta, August 25 to September 1, and shot a male (which 

 was not preserved) at Edmonton on September 11. In 1890 he found 

 it common and probably breeding 15 miles south of Henry House, 

 July 3 to 21, and later in the summer frequently observed it in the 

 mountains and foothills between Jasper House and Smoky River. 

 After the latter part of August, when a severe snowstorm occurred, 

 but few were noted. 



"Nat. Hist. Rev., II (second ser.), p, 279, 1862. 



6 Rev. Am. Birds, p. 188, April, 1865. 



c rroc. U. S. Nat. Mus., XIV, p. 444. 1891. 



d Expl. in Far North, p. 269, 1898. 



e Cat. Canadian Birds, Part III, p. 602, 1904. 



f Auk, XXV, p. 73, 1908. 



