Pandora,
those people who are annoying your chickens, are training so that they can stay alive whilst annoying the Taliban in the near future.
Unlike you and your chickens the Taliban are sporting 7.62 and .50 cal machine guns.
So please, be proud of the fact that in a small way you are serving your country by suffering very little and not complaining about it whilst the men and women in those Chinooks practice techniques to stop themselves from being shot down.
I realise that any noise makes it difficult to get a young one to sleep but in 16 -18 years time your little cherub may be training for war and I garuntee that you will want them to have as much quality training as possible.