Vocal Communication

erh-erh: This is a kind a chatter-like noise made when a common marmoset is angry (Epple, 1968; Stevenson and Poole, 1976).

tsik-chatter: This is when a tsik noise is interspersed with egg and ock noises (Stevenson and Poole, 1976).

tsik-tsik: For this vocalization the corners of the mouth is drawn back, and consists of a series of rapid tsik sounds (Stevenson and Poole, 1976).

tsee: This sound serves as a mild alarm noise and is sometimes interspersed with tsik-tsik (Stevenson and Poole, 1976).

phee call: This loud noise is produced spontaneously by the common marmoset, and is emitted during territorial defense and when there is social separation (Epple, 1970). Norcross and Newman (1993) found that the phee call that is produced by isolated common marmosets have more syllables, shorter in duration, longer intersyllable intervals, lower start and end frequencies, a higher peak frequency, and increased frequency range compared to when in the home cage with group members. Schrader and Todt (1993) suggest that these changes in the phee call may make it easier for an individual to locate a lost mate. Norcross and Newman (1993) also suggest that males and females both participate in territory maintenance based upon a lack of a difference between calling rates between males and females.

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