Frankly, I strafed it across the back as it sped past me at eye level at about a 90 degree angle. The top of the grouse was about shredded but the breasts and legs were unscathed. The branches of the bushes that took the shot charge looked like they all sprouted little tufts of fluff in about a 12 inch circle and well back into the bush. It was quite a lucky shot really... I'm not really that good on grouse or grouse-like clays
