THE RELATIONSHIP BETWEEN INDIVIDUAL VARIATION IN SONG AND ECOLOGY IN THE CAPRICORN SILVEREYE

Songs of individual male Capricorn Silvereyes Zosterops lateralis chlo rocephala had an average repertoire of 53 syllable types which were or ganised into over 30 different sequences of three or more syllables. S ilvereyes cycled through about half their sequence repertoire in one d awn chorus, repeating each several times. They shared a substantial pr oportion of their syllable repertoires with other males, especially th ose in the same age cohort. The relationship of song complexity to the general ecology of the Capricorn Silvereye, and the various influence s on that complexity, are discussed.