Update: i fed them and then, as it had just about stopped raining, let them all into my chicken and duck garden which hasn't been mowed for a couple of weeks so lovely yummy grass and lots of nettles and thistles round the edges. Had to stay with them to stop them eating the apple trees but have just put them back in their paddock after a couple of hours and they seem dryer and happier.
So - am going to watch and see and if they settle down I'll leave them or if any trouble, I'll split them up
it was such a vile day that it was the first time they had had to go inside since turnout a month or so ago!