Thanks for the replies I will give it a go, she is motivated by both toys and treats however when we are in the field where she misbehaves she is totally uninterested in both. She is very prey oriented and will chase any small furry/feathery thing that moves she is very fast and has caught rabbits and a few birds in the past. Once she is in 'chase mode' there is no stopping her so recently she hasn't been let off here but then she just goes madder the next time like she has to make the most of it. Someone at a show suggested to whistle train her like a gundog but I have no idea where to start