662 GEOLOGICAL SURVEY. OF CANADA. 
A specimen of this species was secured in August west of the Sweet 
Grass hills, on the headwaters of the Milk river. It was again ob- 
served in the undergrowth surrounding some reedy pools near 
Chief mountain. (Couwes.). This is an abundant spring migrant at 
Indian Head, Sask., the first individual seen was on May 11th, they 
became common at once and were abundant in spring for a few 
days along streams and shores of lakes; one specimen seen at Ed- 
monton, May 15th, 1897, evidently a migrant; common from the 
mouth of Lesser Slave river to Peace River Landing, in lat. 56° 15’, 
June, 1903; breeding around Vermilion lakes at Banff, Rocky 
mountains, July, 1891, rather scarce; one seen on the International 
Boundary near Rossland, in May, 1902; observed one on the 
shore of a small lake about 8 miles west of Elko, B.C., May 14, 
1904; common in willow thickets on the islands and shore of Elk 
river, May 21. (Spreadborough.) One was taken in the Maple 
creek, Sask. timber on June 8, 1906, in a wave of migrants. (A.C. 
Bent.) This bird was only seen at Carlton House where it fre- 
quented the moist and thickly wooded points of the river. It 
arrived in May and disappeared in a few days, probably going 
further north to breed. (Richardson.) Common about the Slave 
river delta in mid-July. (E. T. Seton.) North to Lapierre House, 
on the Mackenzie river; common. (Ross.) Two specimens were 
taken at Ducks, August 7th and oth, 1889. (Streator.) Found 
breeding along interior streams of British Columbia; Lac la Hache 
and Bonaparte river. (Rhoads.) Breeding at Quesnel, B.C., and 
less commonly at 150-Mile House. (Brooks.) 
The barren coast of Behring sea from the mouth of the Yukon 
north and south affords it but little shelter in the spring, hence 
its extreme rarity there in spring. It occurs in spring where the 
dense growth of bushes about Kotzebue sound affords it available 
breeding grounds. It is, in fact, one of the commonest bush- 
frequenting birds we have in the north. (Nelson.) Several speci- 
mens of this bird were obtained at St. Michael in August, 1876. 
I have never observed it there during the breeding season. (Turner.) 
The first sound that I heard on the morning of August rst, when 
we were on a small island about 10 miles below Sixty-Mile creek, 
was the unmistakable alarm note of the water-thrush. This was 
the first time we had met with this species, and before starting that 
morning on our daily Yukon drift, Osgood and I each secured a 
