This morning at high tide, Dinham Flats.Birds included 35+ Curlew, 2 Bar-tailed Godwit, 1 summer plumage Knot and 3 Whimbrel including one very dark indavidual showing a darkish rump and under-wing + very bold head markings, sadly I could only manage one poor shot as the birds flew off down the estuary and will have a good look for it later today. It could possibly be Hudsonian Whimbrel or a bird showing some melanism. (Shot below)