THE BIRD BOOK 
abundant, 
especially 
459. Olive-sided Flycatcher. 
Nuttallornis borealis. 
Range. — Whole of North America, breeding 
from the Middle States and California north- 
ward, and in the Rockies, south to Mexico; 
winters south of the United States. 
These Flycatchers are nowhere 
and in some parts of the country, 
in the middle portion, they are 
very rare. They breed very 
locally and generally not 
more than one pair in any lo- 
cality. In New England, i 
have always found them nest- 
ing in company with Parula 
Warblers, in dead conifer- 
ous swamps in which the 
branches are covered with long pendant moss. 
Their nests are placed high up in the trees, 
generally above fifty feet from the ground, and 
on small horizontal limbs; they are made of 
small twigs and rootlets, lined with finer root- 
lets and moss, and are very flat and shallow; 
as they are generally made to match the sur- 
rounding, they are one of the most difficult nests to find. They lay three or 
four cream colored eggs which are spotted with reddish brown and lilac, chiefly 
about the large end. Size .85 x .65. Data. — Lake Quinsigamond, Massachusetts, 
June 12, 1897. Nest of twigs and moss, about 60 feet above the ground, in a 
dead pine tree in center of a large wet swamp. Nest could not be seen from 
the ground, and was found by watching the birds. 
Creamy white 
Olive-sided Flycatcher 
290 
