Sounds and Vocal Behavior

Vocal Array

Song

The penetrating song may be repeated without pause for up to 50 seconds, and is usually delivered from a mossy log or, occasionally, from very low in a bush (7 Holmes, D. A., and K. Phillipps (1996). The Birds of Sulawesi. Oxford University Press, Kuala Lumpur, Malaysia, and Oxford, UK. Close ). Generally it comprises typically slow and strong, thrush-like notes; some vocal differences were recently suggested to exist between the various taxa (9 Eaton, J. A., B. van Balen, N. W. Brickle, and F. E. Rheindt (2021). Birds of the Indonesian Archipelago: Greater Sundas and Wallacea. Second edition. Lynx Edicions, Barcelona, Spain. Close ).

H. c. calligyna. Typically consists of three notes , each long-drawn, tremulous, and descending (sometimes upslurred), terminating in a single shrill high-pitched note. This was transcribed by Clement and Rose (13 Clement, P., and C. Rose (2015). Robins and Chats. Christopher Helm, London, United Kingdom. Close ) as “oooe-ee, oooe-ee, ooo-ooeeo”. A second bird (presumably the female) sometimes incorporates muted harsh or scratchy notes into the whole (13 Clement, P., and C. Rose (2015). Robins and Chats. Christopher Helm, London, United Kingdom. Close , 9 Eaton, J. A., B. van Balen, N. W. Brickle, and F. E. Rheindt (2021). Birds of the Indonesian Archipelago: Greater Sundas and Wallacea. Second edition. Lynx Edicions, Barcelona, Spain. Close ).

H. c. simplex. Unknown.

H. c. picta. Compared to the nominate subspecies, apparently more variable and delivers more complex strophes frequently interspersed with high-pitched notes (9 Eaton, J. A., B. van Balen, N. W. Brickle, and F. E. Rheindt (2021). Birds of the Indonesian Archipelago: Greater Sundas and Wallacea. Second edition. Lynx Edicions, Barcelona, Spain. Close ).

Calls

Contact call. A thin, high-pitched piping note.

Alarm call. A loud, rapid thrush-like chatter: tetetet.

None known.