Obviously the passage had dwindled to a trickle in the two hours watching I did up to 4pm. Manx Sheawaters totalled 'only' 420, but I did glimpse a Storm Petrel briefly. Two Great Northern Divers flew S and one stayed on the water, as did a G C Grebe. c15 Common and a couple of Sandwich Terns S. 1 Whimbrel flew N. No skuas though. Whitethroat singing out of the wind. 1 Grey Seal.