Yellowthroat warblers are small, extremely common denizens of grasslands and shrubby habitats. They sing from perches quite often, but just as likely sing from deep in the thickets. They are summer personified, as their voices coat the landscape from late May through August, when they molt and shed that dark mask and migrate south for the winter. They furtive and yet curious all at once. Wichity-wichity-which! is what they sing.