Yesterday 03/08/11, from a fishing boat:
Pomarine Skua (adult), 3 Great Skua, 3
Arctic Terns, 8 Common Terns, 80+ Manx Shearwater, 3 European Storm-petrels, 5+
Yellow-legged Gulls (juvs) in with numerous Lesser Black-backs and Herring Gulls and around 100 Fulmars (all double light phase bar one light phase).

Despite going out to sea on this fishing boat on regular basis for a year now, I have still failed to see any large shearwaters...... yet (a part from Sooties)!! But of interest a Cory's Shearwater was just off Portland harbour a few days ago, see the amazing photos at
http://www.marine-life.org.uk/