PERCHING BIRDS 
stalks, bark strips, grasses and moss, lined 
with fine black rootlets. They are found at 
elevations of from two to ten feet above the 
ground. Like the Wood Thrush the birds are 
tame while sitting on the nest and will allow a 
very close approach, without taking alarm; 
nests are frequently found which are made al- 
most entirely out of green 
moss and are very handsome 
structures. Their three to 
five eggs are laid in May or 
June; they are greenish blue, 
spotted with brown of vary- 
ing shades. Size .92 x .65. 
Data— E u r e k a, California, Greenish blue 
July 6, 1899. Nest in a fir tree, 5 feet from the 
ground; made of moss and strips of redwood 
bark. 4 eggs. 
758a. Olive-backed Thrush. Hylocichla 
swainsoni. 
Gray 
-cheeked Thrush 
Olive-backed 
Thrush 
Range. — Eastern North America, breeding 
chiefly north of the United States, but locally in the northern parts, and abund- 
antly in mountain ranges. 
The nesting habits and eggs of this eastern representative of the last species 
are like those of that bird in all respects and the eggs cannot be distinguished 
from those of ustulatus. 
758b. Olive-Backed Thrush. Hylocichla cedica 
Range.— California and southern Oregon. 
Nesting habits and eggs identical with those of ustulatus. 
759- Alaska Hermit Thrush. Hylocichla guttata guttata. 
Range. — Pacific coast from British Columbia to Alaska. Winters in Mexico. 
The Hermit Thrushes can readily be identified from any other by the reddish 
brown tail which is in marked contract to the color of the back. The nesting 
habits and eggs of this species are precisely like those of the eastern Hermit 
Thrush, which is a sub-species of this. 
759a . Audubon’s Hermit Thrush. Hylocichla guttata auduboni. 
Range. — Rocky Mountain region of the United States. Winters in Central 
America. 
The nesting habits of this bird are like those of the next except that it more 
frequently nests in bushes above the ground. The eggs are not distinctive. 
