662 GEOLOGICAL SURVEY OF CANADA. 
to those it selects in the east. I traced it westward to Turtle 
Mountain on the goth parallel, but did not find it in the Rocky 
Mountains. (Cowes.) An abundant summer resident of low 
thickets in Manitoba, especially to the north. (Zhompson-Seton.) 
Common summer resident at Avenue, Manitoba; arrives about 
May 17th and leaves about September 18th. (Worman Criddle.) 
This is a very common summer resident at Indian Head, Assa., 
it was first seen June 2nd, 1892, and became common in a few 
days, breeds in great numbers; first seen at Medicine Hat, Assa. 
on May 17th, 1894, common by the 20th; abundant in all thickets 
at M-dicine Hat, Crane Lake, along Swift Current Creek, and in 
the east end of the Cypress Hills in June, 1894; this bird was com- 
mon wherever there was brush in Wood Mountain and on Rocky 
Creek to the Boundary; 4 nests were found on Frenchman’s River, 
two in willow thickets and two in wolf willow (Z/@agnus argentea) ; 
it was a common species in all the ravines in the Cypress Hills and 
in Milk River valley and wherever there was brush in southern 
Alberta; first seen at Edmonton, Alta., May 25th, 1897, heard a 
number of them singing next day, they soon became common and 
began to breed ; common from Edmonton north to the McLeod 
River in June, 1898; heard in the bushes at Deer Park, Columbia 
River, B.C., June 6th, 1890; later in the month they were found 
breeding in the valley of Pass Creek, near Robson; quite common 
at Trail and Cascade, and in low bushes along small streams near 
the 4oth parallel in the summer of 1902; a common species at 
Kamloops and Spence’s Bridge, B.C., building in the thickets 
along the Thompson River in June, 1889; only one individual 
seen at Chilliwack, B.C., in June, 1901. (Spreadborough.) Un- 
common at Prince Albert, Sask., several times heard in the 
thickets but only once seen. (Coubeaux.) This species was not 
observed further north than Lat. 54°. Itwas abundant around 
Carlton on the Saskatchewan and bred in the willow thickets. 
{Richardson.) Very common. summer resident of the interior 
of B.C. reaching the coast in reduced numbers.  (Séreator.) 
Common east and west of the Coast Range; rare on Vancouver 
Island; summer resident. (/aamin.) Not abundant anywhere, 
but very local in its distribution in British Columbia. (Ahoads.) 
Tolerably common summer resident at Chilliwack, B.C.; and 
breeding as far north up the Fraser River as Soda Creek, B.C. 
( Brooks.) 
