532 GEOLOGICAL SURVEY OF CANADA. 



1st, when we were on a small island about lo miles below Sixty- 

 mile Creek, was the unmistakable alarm note of the water-thrush. 

 This was the jfirst time we had met with this species, and before 

 starting that morning on our daily Yukon drift, Osgood and I 

 each secured a young bird. Near Forty-mile Creek, Tatondu 

 River and Charlie Creek water-thrushes were again met with. At 

 Circle I saw several August i6th-20th, took one 15 miles above 

 Fort Yukon, August 2ist, and saw two in a thicket at the Aphoon 

 mouth August 28th. The young in full plumage taken on the 

 Yukon are clove-brown above, including wings and tail — far 

 darker than is usual in notabilis — and have darker streaks below. 

 {^Bishop?) I have a nest and four eggs taken by Rev. Mr. Stringer 

 at the mouth of Mackenzie River, June loth, 1899. Nest on the 

 ground under willows near the river bank. iyV. Raine.) For a 

 few days after our arrival in August at the site of our new winter 

 quarters on the Kowak, Kotzebue Sound, Alaska, this species 

 was moderately common. It frequented the alder and willow 

 thickets along the streams and was shy and restless. The species 

 arrived in the spring on May 22nd, and was henceforth common, 

 especially in the Kowak delta in June; but it was not detected 

 west of the tree limit. {Gri?mell) An immature male was taken 

 at Homer, Kenai Peninsula, Alaska, August i8th, igoi. This is.~ 

 undoubtedly a rare bird at Homer, as one specimen was all I 

 noted. {Chapman.) 



MUSEUM SPECIMENS. 



Two; one taken at Indian Head, Assa., May 24th, 1892; one at 

 Peace River Landing, Lat. 56" 15' June '24th, 1903, both by Mr. 

 W. Spreadborough. 



676. Louisiana Water-Thrush. 



Seiurus motacilla (Vieill.) Bonap. 1850. 

 A rare summer resident in Middlesex Co., Ont. ; not noted 

 further north. {W.E.Saunders.) The large-billed water-thrush 

 is by no means so common, a bird in Ontario as the preceding 

 species, but along the southern border of the province, wherever 

 there is a rocky ravine, its loud, clear notes are almost sure to be 

 heard in the spring, mingling with the sound of the falling water. 

 It arrives from the south early in May and leaves irr September. 

 {Mcllwraith.) 



