I only wear a mask sometimes- mostly when I do spring cleaning. as a Microbiologist I know the best answer is one should ideally wear a mask all of the time when doing extensive cleaning of the coop based on the infectious agents which may be present in the droppings. Even more important though...
I raised my chickens with a healthy hybrid situation: I had a run build which was really large around my coop so they had lots of room to forage around. I would put trays of grass in it for them after they ate up all the original grass. It also had access to a fenced in garden area where they...