Scare the birds

These birds need to wake up, because they are so sleep for a week and no one can awaken. But there is a way to stir them, they just need to turn zhordochku and then they jump off it. Be careful in choosing the place where do you have to is opposed, because it affects the outcome of the game. If you know physics, then this game is for you to not be too hard to unravel the answer.