BIRDS OF PENNSYLVANIA 
277 
Note. — Dr. Spencer Trotter, formerly of Philadelphia, now residing at Swarth- 
more College, Delaware county, mentions {Bull. Nutt. Orn. Club, IT, 1877, pp. 79-80) 
the capture of a male Brewster’s Warbler {H. leucobronchialis, Brewst ) by 
Christopher D. Wood, “May 12, 1877, in an apple orchard near Clifton, Delaware 
county.” Although I do not now have the data at hand, my impression is thatsince 
the date above mentioned one other example of this possibly tenable species has 
been captured in southeastern Pennsylvania. Personally, I am unacquainted with 
this bird, concerning which the following is quoted from Dr. Coues’ Key, p. 298: 
“Like H. chrysoptera : but a black bar through the eye as in puius, and lacking the 
black breast patch of chrysoptera, the entire under parts being white ; thus 
chrysoptera X pinus, and doubtless a hybrid between the two, thousrh up to date al 
dozen or more specimens have been described, from. New England, New York, 
Pennsylvania and Michigan.” 
Helminthophila ruficapilla (Wils ). 
Nashville Warbler. 
Description. 
Length A\ tp 5 but generally less than 5 ; extent about 7| t^ke average of five speci- 
mens in flesh); wing a little less than (six specimens average 2..S7); tail little 
under 2 (about 1.90). Bill (dried specimens) brownish (mandible and edges of 
maxilla paler); tarsi brownish ; feet ligh'er. No wing-bars or no white patches on 
tail feathers ; lores yellowish (sometimes ashy or grayish) but not black ; no super- 
ciliary stripe, but a conspicuous yellowish-whiie ring around eye. Plumage of 
upper parts olive-green, brightest on rump ; upper surface of wings (on most coverts 
and edges of outer webs) and outer webs of tail feathers above (especially edges) 
similar to rump but a little paler ; neck behind, sides of head, sides of neck and 
upper part of back, ashy-gray ; top of head similar, but the ashy-gray tips of feathers 
of crown when pushed aside reveal a chestnut patch. Edge of wing, chin, throat, 
breast, and under tail-coverts yellow ; belly paler ; sides greenish-yellow. 
Habitat . — Eastern North America to the plains, north to the Fur Countries, breed- 
ing from the northern United States northward. Mexico in winter. 
This species usually is first seen in the southern part of Pennsylvania 
about the 10th of May ; often in orchards, but generally about bushes, 
thickets or in open woodland, in the vicinity of streams and ponds. 
When migrating in the fall the Nashville Warbler is found here from 
about the middle of September until, some seasons, as late as the middle 
of October. In spring I have mostly observed these birds singly or in 
pairs, sometimes in company with other species, but generally by them- 
selves. Li the fall they are usually seen in small parties, and are then 
often with other warblers. Willow trees along streams and on the 
banks of ponds, appear to be their favorite feeding resorts, as they 
leisurely migrate southward. I believe this species breeds sparingly in 
our higher mountainous regions. Food similar to that of other species 
of its genus. 
