Males have long, complex, melodic songs, with remarkable variety. The rambling series of phrases, often preceded by soft clucking notes, is continuous and interspersed with moments of repetition and mimicry. Songs can be very long indeed; one male was recorded singing for 22 minutes straight.
When alarmed, call is a low, hoarse cluck, very similar to a Red-winged Blackbird, accompanied by a flick of the tail. Occasionally gives a descending, clear, two-noted whistle, and a variety of scolding calls.