I topped up the dust bath today - equal quantities of Wood Ash, Playpit sand, Compost, plus a handful of Aubiose - and the Girls were straight in there.
They were in the bath for ages.
The dust was flying everywhere, and at one point they were all lying in there with their eyes shut, and one of them started chicken purring. It was so weird! If you've seen Jurassic Park, you may remember the noise the Raptors made: that's my Girls!