1908.] BIRDS. 469 



wyan, June 3 and 4: on Rocher River, June 6 to 8; and near the 

 mouth of the Peace. June 9. We next noted it at Fort Resolution, 

 where we observed several June 24. During their trip to the Mac- 

 kenzie my brother and Cary found it common, seeing several on 

 Hay River, June 28 to July 1, and noting it daily at Fort Providence, 

 July 2 to 8. They noted it also between Fort Providence and Fort 

 Simpson, July 9, and found it abundant at the latter place duly 10, 

 observing young just from the nest. Near the mouth of Nahanni 

 River they saw it on July 13, and they heard it at Fort Wrigley, July 

 21. On their return trip they saw a female at Brule Rapid, August 18. 

 While crossing Great Slave Lake I noted the species 40 miles south 

 of Trout Rock, July 24. During my trip northward from Fort Rae 

 I noted a few along Grandin River, August 1 to 5, and recorded the 

 species for the last time on Lake St. Croix, August 10, observing a 

 flock of about twenty, evidently migrating. 



In the spring of 1904 the yellow warbler was first seen on May 20, 

 at Willow River, near Fort Providence, where a series of specimens, 

 including both sexes, was collected by Mills and Jones. At Fort 

 Simpson I observed it first on May 21, and collected others on May 

 23 and 24. I saw the first females on May 25, when the species had 

 become common, and noted it nearly every day up to June 1. While 

 descending the Mackenzie to Fort Norman I found it common in 

 willow thickets near the mouth of Nahanni River, June 3; and 8 

 miles below Fort Wrigley, June 8. It was abundant at Fort Norman, 

 June 11 to 15, and several pairs had nearly completed their nests on 

 June 13. After I left this place it was next noted 75 miles below 

 Fort Norman, June 18. At Fort Good Hope it was seen on several 

 occasions during my stay, June 21 to 24, and one was seen 100 miles 

 below there June 27. I found it common at Fort McPherson during 

 the first half of July, noting it nearly every day. A nest taken 

 July 3 held eggs slightly incubated. On my return trip I saw the 

 species at Fort Simpson on July 27. J. W. Mills took specimens at 

 Fort Simpson on Ma}^ 23, 1905, and reported it as arriving on 

 May 19. 



King observed the yellow warbler at Fort Resolution about the 

 middle of May. 1835.° Richardson noted its arrival at Fort Frank- 

 lin late in May. 1849. 6 Ross listed it as abundant in the Mackenzie 

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

 at Fort Simpson.' In the Anderson River region. MacFarlane 

 found it very abundant throughout the wooded country.'' Laird 

 recorded specimens from Fort Resolution, Fort Rae. Fort Simpson, 



"Narrative Journey t<> Arctic <><-can, II. |>. 196, 1836. 

 B Arctic Searching Expedition, II, p. 108, 1851. 

 ■Nat. Hist. Rev:, II (second ser.), p. 280, 1862. 

 *Proc. U. a. Nat. Mus., XIV, p. ill, 1891. 



