a singer; usually a singer who adds embellishments to the song
"After years of singing straight notes, she finally joined the choir as a warbler, delighting everyone by weaving complex trills into their hymns."
a small active songbird
"The warbler darted quickly through the branches, filling the morning air with its cheerful trill."
Any of various small passerine songbirds, especially of the family Sylviidae (Old World warblers) and Parulidae (New World warblers).
"The morning chorus was dominated by a bright yellow warbler singing from the top of an oak tree."