We then visited Shoreham Harbour where the Glaucous had been seen briefly before we arrived and had departed E, we did see around 20 Turnstone and 3 Purple Sandpipers.
If anyone is interested, I have now added our full Taiwan trip report in 2 parts and an our old South African trip report both with images on the following blog:
Glaucous Gull which is a probable 1stW at Widewater.
Glaucous Gull being chased by 2xHerring Gulls.
Adult Kittiwake on Widewater
Purple Sandpipers at Shoreham Harbour
Turnstone at Shoreham Harbour