Bamboo wind chimes/ flutes
In the older Robin Hood movie with Kevin Costner, when Robin, Azeem, and Duncan were running from the Sheriff's men, they ran into Sherwood forest. The forest was reported to be 'Haunted'. Partway in they heard strange sounds which were discovered to be what I believe bamboo wind chimes that were also flutes or whistles that were activated by the wind. Anyone know how these could be made? The main problem I see is that the flute/whistle needs to sound at low wind speed. I have never figures this part out. Thanks.