PINE WARBLER. 
671. Dendroica vigorst. 5% inches. 
Greenish yellow above, brighter below: two white 
wing bars and white Spots on outer tail feathers: female, 
duller and grayer. 
Found only in tracts of coniferous trees, except during 
migrations, when they are often in company with other 
kinds of Warblers. They like dry hillsides covered with 
scrub pines and are often quite abundant in such locali- 
ties. ‘They are rather quiet in their manners, creeping 
about «unong the tree tops like Black and White Warblers 
and occasionally giving their clear little trill. 
Song.—Nearest like that of the Chipping Sparrow, 
but easily distinguishable: a long, clear trill. 
Nest.—A small, compact structure of black rootlets 
lined with hair; placed in the extreme tops of serub 
pines, where it is very difficult to see them; eges white 
specked with reddish brown (-62)'x .50). : 
Range.—Eastern N. A. breeding from the Gulf north 
to southern Canada; winters in southern U.S, 
