They are very faint, here, barely audible even at full volume with earphones. They can also be heard in this video: https://youtu-be/VSwHw68TntE from 53 s onwards.
bird-seen:no
playback-used:no
Common name: Channel-billed Cuckoo
Type: adult, male, song
Genus: Scythrops
Species: novaehollandiae
Location: Beaconsfield, Council of the City of Sydney, New South Wales
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