[TARNATION !!!]

Yes they do. I have had to adjust that rhythm several times a year but normally with roosters. I had a marvelous hunt in snow with Jim back in the late '70s. It was a bright sunny day and there had been a fresh snowfall overnight. We were on a hillside that sloped to a creek. It was rooster country. A completely snow-covered hen flushed close to me. Then a rooster too far away to consider. As I worked down a bit of a trail another rooster burst from under the snow sending the freshly fallen flakes in great profusion, giving the effect of glittering diamonds against the brilliant clear blue sky. It was an awesome sight, never repeated so far. My daughters heard this story many times and when they saw the grouse flushing from snow, they couldn't resist sending it to me. Good daughters for sure. BTW, I wasn't so awe-struck as to not send a flock of #6 pellets through that beautiful scene resulting in a fine meal enjoyed later. Cheers, Jack