The FOX has been again !!!

Mr Fox has apid another visit, this time killing 21 birds, OK i can hear some of you saying why haven't you made your pen " fox proof " well in some ways i would say the same, and yes i can wire in a small enclosure to keep my birds safe, But then they would be back where they came from, BATTERY CAGES !! I want them to be free range and have loads of room to roam around in.. Mr Fox is only doing what his instinct is telling him, in the wild he would come on a flock of birds and kill as many as he can as fast as possible before they flew off, then he would take them away one at a time and hide the carcases for later consumption, the reason i have found so many dead left laid where they were killed is Mr Fox was disturbed, and took fright..I have bought some new birds to replace the resent lost ones, but as some are young and not in lay yet I am feeding them for nothing, it is draining my pockets dry, I had got to the stage where the birds were self sustaining, ie the sale of the eggs paid for their food and the rent of Chickenopolus and some weeks paid for my petrol too, all this expense is coming from my disapearing wallet :(