I built a decent, actually nice dust bath with many old bricks, a few days ago. the area was dug down so that the bathing area is about level with the surrounding ground area. I filled it with a good mix of sand, DE, wood ash and some dirt. I did this as the two hens in this run waited patiently, watching. Five minutes after completion, they check it out and immediately one starts scratching out a hole bordering one of the brick sides, only on the outside area of the dust bath. She then starts to enjoy her own dust bath, next to the one I had just built. After seeing her the other hen decides, "hey, great idea!" She then proceeds scratching out a hole on the opposite side of my dust bath, using the opposite brick side as her border. Then she immediately jumps in, rolls around, throws up dirt .... blah, blah, blah.
So I guess I could have saved myself some time and labor had I just dug a few places in the run loosening the soil a tad bit and they would have done the rest, building it the way they like and not the way this "hu-MAN" thought they would like. After one week now, they have yet to use the dust bath I built, but have added several of their own.
So now I feel experienced enough to ask," are you building the dust bath for you (your aesthetics/ideas) or them (their natural 'know how to do it right')?