I'd like to see some one load take, off safety, and fire at a rising pheasant, quail, or grouse with any sucess.
One thought was walking around with action broken open but charged chambers and safety off (this assumes no auto-safety).
Closing the gun could be done in the same motion as shouldering to fire.
I like to do most of my walking with a cold chamber. If game is in sight, hot chamber with safety on, same if walking really likely cover with good footing. This is why I like a pump shotgun; I often carry it chamber cold, hammer down. I can pump a round in nearly as fast as I can release a safety when the sharptails flush.
This is how I run a pump as well.