R52 GEOLOGICAL SURVEY OF CANADA. 
an empty nest 30 miles below Dawson and heard that the birds 
bred near Fort Yukon. Although robins were by no means com- 
mon at Cariboo Crossing, I found, on June 25th, 13 empty nests, 
most of them evidently built that year and four empty nests of the 
Alma thrush, in a small patch of spruces. The red squirrels which 
lived in a hollow tree near by probably knew of the location of 
most of these nests. Osgood took a well grown young robin here 
on June 26th. (Bishop.) One juvenal taken at Sheep creek, 
Alaska, Aug. 30, 1903. (Anderson.) 
BREEDING NotTes.—This species nests at Scotch Lake, N.B., 
from April to August. Four broods have been hatched in one 
nest in one season. The nest always has earth in its composition 
and is lined with leaves of grass; eggs three to five; I have known 
the birds to move the eggs from one nest to another when the first 
place had become too public. The period of incubation is ten or 
eleven days and the young stay in the nest fourteen days. (W. H. 
Moore.) Nests are placed on stumps and fences, in sheds and 
around buildings and in trees almost from the ground to 50 feet up 
in large trees. The nest is made of grass with a bed of mud and a 
lining of grass. Eggs taken at Ottawa in April, May, June and 
July. (Garneau.) Nest very bulky, composed of vegetable matter, 
leaves, moss, stems and weeds, grass, hair and wool; inside is a 
neat cup of mud lined with fine vegetable matter; eggs five, of a rich 
greenish blue colour. No markings or spots. (G. R. White.) 
761. Western Robin. 
Planestictus migratorius propinquus (RipGw.) RipGw. 1907. 
Common in the Maple creek, Sask., timber in 1906. (A. C. 
Bent.) A common,summer resident throughout the whole district 
of Medicine Hat, Crane lake, Swift Current creek and Cypress hills, 
Sask. This form was first seen at Banff, Rocky mountains where 
it was in some numbers; at Revelstoke, B.C., it arrived on April 
roth, 1890, and soon became common; it bred in large numbers at 
Revelstoke, Deer Park, and Robson on the Columbia river, but 
curiously it was very wild and difficult to shoot; common on the 
International Boundary between Trail and Cascade in 1902; found 
a nest on a fence overhung with brush near Trail; abundant every- 
where in the Okanagan valley, B.C., in April, 1903; very abundant 
