over the last couple of days ive noticed at least 2 shelfs have had watery droppings in my ybs section but couldnt identify which bird it was well today i noticed very bad watery droppings and 1 bird with crop full of food from last night,ive taken him out today and placed him in a crate away from the others, all my ybs were treated for canker and befor that were wormed,they are not on darkness,any ideas cheers