had the same thing happen to me a number of years ago was training the young birds from clovenfords on the top of the hill had just liberated the young birds next thing turned round and here is 2 low flying jets coming down the valley now these two jets had to take avoiding action to miss ploughing into my batch of young birds the result was lost half the young bird team that day I dont know if some of you will remember when a jet crashed at lauder I believe that jet came down as it possibly ran into a batch of pigeons that day watched it many times when you have liberated pigeons up the borders next thing a low flying jet passes in front of them the pigeons will not fly through the turbulent air left behind till the air settles back down