this is doing my head in, never had a season like it my old birds every time they come back from a race there covered in them and i pride my self on my birds being in top notch when i send them . ive spray them and powerd them ive diped them and sprayed the loft out with vikron S now ive put some drops on the back of there necks so ill see if that works they look and feel realy good but i just don,t like having lice on them any one else having the same probs .