THE BIRD BOOK 
684. Hooded Warbler. Wilsonia citrina. 
Range. — Eastern United States, 
breeding north to southern New 
England and Michigan; winters 
south of our borders. 
This yellow and greenish species 
can be identified by its black head, 
neck and throat, with the large 
yellow patch about the eye and the forehead. The 
members of this genus are active fly-catchers, 
darting into the air after passing insects in the 
manner of the Flycatchers. They frequent tan- 
gled thickets where they build their nests within 
a few inches of the ground, making them of leaves, 
bark and grass, lined with hair; the four or five 
eggs are white, specked with reddish brown and 
neutral tints; size .70 x .50. Data. — Doddridge Co., 
Mo., May 29, 1897. Nest one foot from the ground 
in a small bush; made of leaves, strips of bark 
and fine grasses. 
685. Wilson’s Warbler. Wilsonia pusilla 
pusilla 
Range. — Eastern North America, breeding from 
northern United States northward; south to Cen- 
tral America in winter. 
These handsome little black-cap- 
ped flycatching Warblers are abun- 
dant during migrations, especially 
in the spring, being found on the 
edges of woods and in orchards. 
They nest on the ground, usually 
on the edges of swamps, embedding 
Hooded Warblers their nests in the ground under the shelter of low 
i son s ar > eis branches or on the edges of banks; the nest is of 
bark strips, fibres and leaves, and the eggs are white, specked with reddish 
brown; size .60 x .50. 
685a. Pileolated Warbler. Wilsonia pusilla pileolata. 
Range. — Western United States, breeding in the Rocky Mountain region from 
Mexico to Alaska; winters south of the United States. 
Similar to the eastern form but the yellow underparts and greenish back are 
brighter. Like the last species, this form nests on the ground or very close to it, 
in weeds or rank undergrowth, in swamps. Their eggs which are laid in May 
or June are not distinguishable from those of the last. 
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