Just missed the Gull-billed Tern at Passage House Inn on this evening's rising tide, but a walk up-river discovered a high-tide gull roost in the middle of Newton Abbot Racecourse.  A scan through several hundred mainly black-headed gulls found the tern settling down for the night at around 8:15pm.  Got very wet feet walking back to the Passage House with the path under water!