Thank you, have been and bought some powder already and just finished doing all of them (quite a challenge to catch them all unwillingly!) Florence was covered in little white lice things and so doused her well with it and cleaned out the coop and waiting to spray mite and lice stuff in it when it is dried.
I think this is the only issue now it has been detected... could it be this that is giving her the other issues?
Thank you all again
Laura
Red Mite Powder is sterilised corn flour with added herbal aromatic essences and the active ingredient (if you can all it that) is citriodiol (Sp?) a mozzy repellant. The louse powder is essentially identical (the active ingredient is the same) except it has a coat glosser for horses (I think it's based on avocado), the horse fly repentant is the same active ingredioent as is the Red Mite spray. The RM powder costs £10 - £13 for half a kilogram which doesn't go very far and is essentially very expensive flour. Which is why I described it as talc. It does smell nice.
I and many keepers I have known have not found these products effective for killing RM and dealing with an infestation. When I contacted the manufactures of the active component Citrodiol they denied any knowledge of it's effectiveness for repelling RM. It's marketed as a component for use in organic mozzy repellant and has scientific data to show it to be effective against certain species of mozzies that were used in the tests. Barrier claim it is effective but refused to share any test data with me unlike the citrodiol manufacturers.
My wife uses the horse spray version and finds it effective for about 20mins for flies but she sprays it on therself. I know how the flies feel so I'm not surprised.

If you want to zap lice or any creepy crawlies which live on the bird use Frontline cat strength four drops on the skin back i=of the neck for large fowl or two drops for bantams. Repeat in 5 weeks until there are no signs. FL is available on line or from Costco or from your vet (expensive).
HF