Many, many years ago (in my twenties) I used to fly a dual control kite. But I never saw any birds go near it and the string was brightly coloured and clearly visible. Dual string allows one to make the kite do loops in the air, but the bright colour helped to see when the strings were crossed; this could then be corrected by doing reverse loops.
I can well imagine that razor sharp thin strings would be dangerous. To coat them with glass and/or metal is totally irresponsible. Such use should be banned.
If the string is brightly coloured and not sharp, then it is clearly visible to birds. I would never have flown a kite if I thought there was any danger to birds. As I said, in the years I used to fly a kite I never saw a bird go near mine and I didn't send the kite near one.
I can well imagine that razor sharp thin strings would be dangerous. To coat them with glass and/or metal is totally irresponsible. Such use should be banned.
If the string is brightly coloured and not sharp, then it is clearly visible to birds. I would never have flown a kite if I thought there was any danger to birds. As I said, in the years I used to fly a kite I never saw a bird go near mine and I didn't send the kite near one.
