Field Marks. The combination of yellow crown and chestnut sides 
will easily distinguish this warbler. 
Song. "Chee-chee-chee-chee, chee ar." He seems to say, "I am 
the chestnut-sided/' with a rising inflection on the last syllable. 
The chestnut-sided lives nearer the ground than the red-start which 
in actions it resembles. Many times I have found the nest of this 
species placed in a low bush within a few feet of the wheel track. 
The warbler family of whose very existence many people are ignor- 
ant, is represented in Vermont by over thirty different species. They 
are almost entirely insectivorous, consequently of inestimable economic 
value. Dr. Elliott Cones says : "With tireless industry do the warblers 
befriend the human race, their unconscious zeal plays due part in the 
nice adjustment of nature's forces, helping to bring about that balance 
of vegetable and insect life without which agriculture would be vain." 
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