246 SINGING BIRDS. 
States, and after staying to feed for a week or ten days, it 
proceeds to its northern breeding-place in the wilds of Canada, 
of which we are wholly ignorant. In November I have ob- 
served a few on their return to the South, and according to 
Vieillot, they winter in St. Domingo and other of the larger 
West India islands. 
Near Farranville, on the Susquehanna, within the range of 
the Alleghany Mountains, in the month of May, I saw and 
heard several pairs of this rare species in the shady hemlock- 
trees. The males were uttering their slender, wiry, and very 
peculiar notes, while busily engaged in foraging for insects, 
and seemed, by being paired, to prepare for incubation. 
The Pine Swamp Warbler (SyZa sphagnosa) is now consid- 
ered only as the young of this species, of which, however, I 
think there yet remains some doubt. 
The history of this species need no longer remain a mystery, for 
while not abundant, its nesting habits may be studied in any suita- 
ble locality in New England or northern New York, or along the 
higher altitudes of the Alleghanies as far down as Georgia ; though 
the major portion of the flocks pass on to the Canadian faunal area 
before stopping to build. 
I did not meet with many examples in New Brunswick, and Mr. 
Neilson thinks it rare near Quebec city; but Mr. Wintle calls it 
common near Montreal, and the Ontario observers also regard it 
as common. It winters in Florida as well as in the West Indies. 
KENTUCKY WARBLER. 
GEOTHLYPIS FORMOSA. 
Cuar. Above, olive; crown and sides of head and neck, black; line 
from nostril to and around the eye yellow; beneath, yellow, the sides 
shaded with olive. Length 5% to 53, inches. 
-Vest. On the ground, in rather thick woods ; a bulky affair of loosely 
laid leaves and grass, lined with vegetable down, roots, or hair. 
Eggs. 4-6; white or creamy, spotted with lilac and several shades of 
brown; 0.73 X 0.56. 
This beautiful species, first described by Wilson, frequents 
the dark forests of the southwestern parts of the Union, being 
