Still no sign of the bitch, cheers for the positive replies. Fireman you are not on this f*****g planet mate, this earth is huge , it will be 20ft plus everywhere I'd say, the only way we could have the slightest incling of where to start digging is by putting another dog with a collar on and hoping that the dog goes to the bitch, which with the amount of other occupants I'd imagine are in the earth is a big ask. Plus with the Police, farmer etc etc all knowing what is going on, entering another dog would be seen as willingly interfering with a sett. End of.