690 GEOLOGICAL SURVEY OF CANADA. 
mountain streams from Banff through the Rocky mountains to the 
Selkirks and Gold range. Its habit of living beside and behind 
waterfalls and small cascades adds a great deal of interest to a study 
of its habits; one nest found in the Kicking Horse valley was placed 
on a ledge behind a small waterfall and contained young birds on 
August 13th, 1885; at a distance it looked like a large mass of wet 
moss, but on examination it proved to be a nest shaped like an oven. 
(Macoun.) Very common in the rocky creeks west of the Columbia 
river on the 49th parallel in the summer of 1902; taken in Eagle 
river in the Gold range, B.C., on April 5th, 1890; common on the 
Elk river, B.C., May, 1904; one seen on Whipsaw creek and one on 
Skagit river, B.C., July 15th, 1905; one seen on a small stream at 
5,000 feet altitude, July 25th, 1905; a few were seen in the little 
stream below Spence Bridge, B.C., in May, 1889, and a few at the 
head of the North arm of Burrard inlet, B.C., in April, 1889; quite 
common on the Chilliwack river and the streams flowing into it in 
the summer of 1901; one seen near Goldstream, Vancouver island, 
June 2nd, 1893; also saw one on Sooke river, on September 5th, 
where I heard it singing for the first time, I have heard it said they 
were good singers and so they are; their song resembles that of the 
cat-bird very much, in fact so much so that if I had not seen the 
bird sitting on a stone I should have put it down for that bird; 
they seem to do most of their singing in the fall and winter. (Spread- 
borough.) On July 16th, 1887, a nest of this species was found on 
the stringer of a bridge over a stream emptying into Cameron lake, 
at the base of Mount Arrowsmith, Vancouver island; it was built of 
moss and quite large, but very compact in the centre, but with the 
dome over it; owing to its position in a rapid torrent the eggs or 
young were not seen as we looked through a chink at the nest; as 
we camped at the bridge we had the bird under observation for two 
days. (Macoun.) 
Three specimens of this bird were procured by Mr. Drummond 
near the sources of the Athabaska river, on the eastern declivity of 
the Rocky mountains, between latitude 54° and 56°. (Rchardson.) 
The only specimen seen was shot at Ducks, B.C. (Streator.) To be 
found in nearly every mountain stream throughout British Columbia. 
(Fannin.) Very common along all the rivers in British Columbia. 
(Lord.) Resident at Chilliwack, but not common ; common at Lake 
Okanagan, B.C., sings all winter; in the Cariboo district of British 
