I travelled alone overnight and joined Liam, Toby, Gethin and the rest of the crowds assembled a little way northeast of the Hayle Estuary mouth. Long story short, the Brown Booby never put in an appearance. A Knot, a Whimbrel, a Sand Martin, four Swallows, a Rock Pipit, two Ravens and a basic assemblage of seabirds including Manx Shearwaters, Shags, Gannets and Fulmars, plus several Mediterranean Gulls, were feeding out in the bay. Eight Sandwich Terns were on the sand and Ringed Plover, Turnstone and Oystercatcher were also present.
I gave up just before midday and headed to Trevescan, though didn't search for the Western Bonelli's Warbler for particularly long at all before making my way back home.