I was over at Mitchell's House this morning, bumping in to Sarfraz & Paul, who were there when I arrived. Can't add much to your post but of note were the following
herring gull - c 80, with birds coming and going all the time
lesser black-backed gull - a few at the res
common gull - c30 on the res, 10 in a field near Stonefold & a flock of c40 over Stonefold, which were probably all different birds to those seen earlier at the res
black-headed gull - c60 at the res
kestrel - 1 at the res and at least 5 between the res & Duckworth Clough
buzzard - Paul & Sarfraz had 2 on fenceposts near Stonefold
stonechat - we had a male on Black Moss, so possibly a different bird to yours
mistle thrush - 1 at the res
redwing - 11 near Stonefold
starling - 12 at Stonefold (min 200 seen later at Gregory Fold/ Broadway, Helmshore later)
house sparrow - min 20 at Stonefold
reed bunting - male and a calling bird near the res