We've received an email from Jason Anderson, and here are his sightings:
Main record of note: 2 Green Sandpipers seen well in drainage ditches just west of Magwitch Mound. Late migrants north or early returners, I wonder? Also Kestrel confirmed breeding record (male carrying shrew towards Car Park from near Flamingo Pool). Also juvenile Linnets seen in family group, Ringed Plover, Sparrowhawk male, Stonechat, 2 Reed Bunting singing, Corn Bunting, 2 Common Tern (1 sitting on raft on Flamingo, other mobbing Kestrel - are they breeding?), Cuckoo singing for most of day and a suspected Med. Gull (I didn't submit this last record as the bird was quite distant - not 100% sure).
thanks Jason