Lesser Scaup at Colney Pits

On Wednesday 27th June, after work, I travelled to Colney Pits travelling just off Chapel Break road. I parked at Hempsted Mews and walked over to a gap in the hedge where 2 birders were talking. On Saturday, 1st July, I went back and the moulting male Lesser Scaup was swimming over the Pit and then swam right. It had a bobble shaped head with pinched in part in the middle which was a Lesser Scaup feature and the head looked a deep purple colour.