Summary[
edit] Description: English: Morning repertoire of a White-throated robin-chat, which delivers its song for some 15 minutes from in the same perch in the upper branches of a bush clump with dense understory thicket, to which it can retreat for safety. It sings from 3-4 metres up in the open tree canopy, where it warms itself in the first rays of the morning sun. The original recording contains 138 phrases (the last 122 in this clip), starting at 07:36 am and continuing for just over 14 minutes, i.e. a phrase every 6 seconds. The sound graph suggests that the song is most vigorous soon after it starts, when perhaps it is most concerned with reestablishing its territory, and least vigorous in the last minute or so, when the sun is getting bright. The recording is made late summer, and a migrating flock of European bee-eaters is audible from 8:30 in clip, when they leave their night roost in a tall Eucalypt nearby. Other background sounds are from Rock bunting, Black-headed oriole and Cape turtle dove, besides me adjusting the recorder's cover, unfortunately. Date: 19 March 2021, 07:36. Source: Own work. Author:
JMK.