WARBLERS 
The yellow warbler easily finds his way to the heart of a canary lover, 
for his song, though not unusually melodious, resembles that of the canary. 
The cheerful wee-chee-cherwee, is often heard in parks or gardens. 
The yellow warblers are among the first birds to leave the northern 
latitudes in the fall, among the last to return in spring. In straggling flocks 
they migrate as far southward as Brazil and Peru, usually flying at night. 
Guided by unerring instinct, they never lose their way, but occasionally 
dash themselves to death against lighthouses, apparently attracted to the 
light. 
Sometimes, in the company of other migrating warblers, they fly by 
day from tree to tree, gleaning insects as they go. The golden-yellow adult 
males, chirping merrily, fly ahead, while the duller-colored females and 
the yearlings bring up the rear. These birds are highly beneficial to man, 
as they eat many crop-destroying insects. Because they feed exclusively 
on insects yellow warblers cannot tolerate cold weather, which deprives 
them of their diet. 
The yellow warbler’s nest is built in fruit or shade trees or in bushes, 
usually near water. It is made of fine grasses, hair and much plant down, 
neatly and compactly felted together. The eggs, four or five in number, 
are bluish-white, marked with cinnamon. 
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