Black cloud sound like a native American name.
In swiftlet farming it refer to a collection of birds crowding above your birdhouse until you cannot see the sky.
It was just a name I choose for this special birdcall sound that have been proven in Raub, Besut, Tangkak and Sungai Patani.
The number of birds seem responded to the sound was very impressived.
In Besut, Trengganu, report today indicated that there were at least 200 birds from morning until late evening keep circling above his BH roof and many seem to attack the tweeters at the entrance hole. Some fly inside.
The sound was initially used in a BH in Tangkak. I have been very encouranging where a new BH, after a few short months now already have 120 nests using this "Black Cloud"
In Raub, similar report came in today saying that those birds seem to be very attracted to the sound. By late evening hey seem to playing above the BH and entered before darkness.
In Sungai Patani, similar result seem to observe. I would like to do more test tommorrow.
Hope this new song will help many BHs that are empty.
If you wish to have one copy call Harry(017 755 1318) for more details.
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