Quite busy with work today but popped out into the back garden when the rain wasn't too heavy. Waders evidently moving with small flocks of Dunlin probably totalling up to about 50 birds, assuming I was seeing different flocks. One flock at least contained a small number of Ringed Plover. Also 7+ Whimbrel with a high north-bound flock of 13 early evening. The tail end of one spell of rain saw a flock of 23 House Martin move upriver alongside 9 Swallow and a Swift. Otherwise just 2 Bar-tailed Godwit, 4 or 5 Sandwich Tern 1+ Common Gull and 15+ Black-headed Gull. The party of 2 Pale-bellied Brent Goose and 5 Dark-bellied Brent Goose still haven't moved on.