Geothlypis formosa. —Kentucky Warbler. 
Summer resident. Not uncommon at this season in swampy woods. 
Several nests have been found. 
Geothlypis cigilis. —Connecticut Warbler. 
Autumn migrant. A few have been observed in late September and early 
in October. It has not yet been found here in spring. 
Geothlypis Philadelphia. —Mourning Warbler. 
Migrant. Very rare. It is found chiefly in swampy thickets. Six speci¬ 
mens in all have been observed, one as late as June 3d by Mr. George 
H. Gray. 
Geothlypis trichas. —Maryland Yellow-throat. 
Summer resident. Very common in swampy thickets and briar patches, 
from the middle of April until about October 20th. 
Icteria virens. —Yellow-breasted Chat. 
Summer resident. Common from late in April until September. This is 
a noisy and conspicuous species. It is frequently heard singing at night. 
Sylvania mitrata. —Hooded Warbler. 
Migrant. It has been found in small numbers in May and September. 
Sylvania pusilla. —Wilson’s Warbler. 
Migrant. Not common. It passes through in May and again in September. 
Sylvania canadensis. —Canada Warbler. 
Migrant. Common in spring during the month of May. In autumn it 
returns early, about the second week in August. It leaves for the 
south the third week in September. 
Setophaga ruticilla. —Redstart. 
Summer resident. It occurs chiefly as a migrant, but a good many spend 
the summer with us. They arrive the last week in April and remain 
until the middle of October. This and the three preceeding species 
are called the fly-catching warblers. They are found for the most part 
in woodland thickets. 
