Forgive my ignorance, could someone offer the benefit of their experience.
In my high seat on Friday, after 10 minutes saw a Roe buck 300 yards away at the other end of the wheat field.
It slowly wandered up one hedge until it was 25 yards away. It was not stationary for very long at any time so I took a heart shot at 25 yards and it dropped after 3 yards.
Had I shouted at it , "Oi," or something similar would it have stopped and looked for the noise source long enough for me to head shoot it or would it run.