THE BIRD BOOK 



459. Olive-sided Flycatcher. 



Nuttallornis borealis. 

 Range. — Whole of North America, breeding 

 from the Middle States and California north- 

 ward, and in the Rockies, soutli to Mexico; 

 winters south of the United States. 



These Flycatchers are nowhere abundant, 

 and in some parts of the country, especially 

 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. 



Creain>' "white 



Olive-sided Flycatcher 



