The Fox is a very cunning animal and will very quickly work out how to get at your birds if they are not 100% protected. He will quickly spot any weaknesses your coop has and take advantage, whether that's scaling the fence, digging underneath it or chewing straight through it. As foxes like to wander about at night you need to be 100% sure that a fox can't get into the roosting area.
From looking at the photo's, I didn't realise the run didn't have a roof on, I thought the run was 100% secure, but looking again at it now a fox could easily get in there at night. This may be ok providing the fox has no way of getting inside the roosting area, but you need to make sure. If it was me I would make sure the run was 100% secure and then also make sure that if a fox somehow managed to get in the run it then couldn't break in to the roosting area.
You also need to make sure there's no little holes that rats can get as they can cause havoc to roosting birds.
With the run not having a roof on it you could find that your birds can escape too. Looking at the position of the log, one of your birds could easily hop onto the top of that and then hop onto the top of the fencing. Clipping wings is something that I won't do to a bird as I want my birds to be as natural as possible and from reading about there seem to be mixed results as to just how effective clipping can be. Besides, our birds seem to take great delight in hopping onto the coop just so they can jump off again, getting good air
If you secure the roof to add protection from foxes you have no need to clip the wings anyway.
For the dust bath, we use a mixture of children's play sand, dry peat, some hemp wood chip and a good few squirts of DE and the chickens seem to love it. We use a large cat litter tray for this and only ever put it out for the birds when it is dry. A good test of a dust bath is if the birds have been in it for a while and they then get out and shake themselves you should see a good amount of dust and whatever else come off them. They seem to really enjoy themselves in the bath though, it's highly amusing to watch, they all try to squash themselves in, vying for the best spots, no fighting or squabbling or anything, they just seem to really enjoy it and it does keep them nice and clean.
If you use a complete layers feed then that should provide all their dietary needs. We also make a mash for the birds so we like to have a separate coop cup that we fill with small grit, which helps them break food down, as well as another cup filled with finely crushed oyster shell (source of calcium for eggs). The birds go through the fine oyster shell quite quickly so I think the birds must need it. The larger grit pieces last for longer but they definitely take a few bits every now and again.
Lovely looking birds there, now it's just a case of keeping them safe and healthy and waiting for the first little eggs to be laid.
