Curlew Sand briefly on the point departed up river. Going south 80 Swallow, 32 Knot, 24 Sand Martin, 3 Oyks, 2 Yellow Wags, Redshank, Turnstone & Barwit. 2 Sparrowhawks is indicative of autumn dispersal. Black Red still here & 4 Clouded Yellows today inc 2 "helice" types.