will be taking a dropping sample to my Avian vets very shortly and a bird for swabs , they seem to be in good healthy state and at this time of year as not very warm should have very little to ail from and no cross contamination from the baskets , all medicines i use are from my vet as most off the shelf products are only half the strength as prescription only medicines , so that people treating blind dont over use the products but if half strength then aint doing birds much good by treating blind and it not been the correct strength for the job