A drake SMEW is present for its second day at Thorney Country Park at TQ 047 790 (per Sue Giddens)
Thorney CP is just inside Bucks, along Thorney Mill Rd near Richings Park. It is part of the wider Colne Valley regional Park. TQ047790.
There is the brook and a small pond, and some dispersed bushes making it a good spot for a variety of commoner species. Due to problems with travellers, I find the car park is often unavailable but there are usually small pull-in areas near the gate you can use, and pedestrians can walk in at that point. It is run by Bucks CC and is about 20acres in size, created by extraction of minerals for M25 construction (contributed by Brian Clews)