Thank you Zo, I run the farm on a school site so electric fencing can be tricky. I am in Ealing, London and so we are talking urban foxes....they have had evryting we've had (except the pigs!)...Have resorted to trapping and moving on. Lost a newborn lamb on monday morning (dusk). Need a goose to help warn me as I had a fox take a duckling in front of me....luckily I caught that one!!