Communication and Perception
Mottled ducks communicate with each other by making noise and displaying (see Mating Systems and Behavior).
Their sounds resemble those of mallards. The males have a low raspy "raeb" call. A single call note is an alarm signal and two notes together signify either courtship or conversational calls. The females also have a low, raspy call. It starts out high pitched and lowers in pitch throughout the call. Female calls consist of six notes, the second one is the highest pitched. When the female is alerted, she lets out three or four quick quacks. The female uses a "gagg" note when she is inciting (attracting) her mate.
Communication Channels: visual ; acoustic
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