I have a bird that has ,what I would call a bark or similar . I had one the same about a month ago, separated it ,treated it with doxy-t for 7 days and it was fine , put it back with the rest but within a fortnight started again so it was got rid off. As with the last bird the wattles are fine , the droppings are good but the birds that were affected struggled when out flying, could I be treating for the wrong illness ?