Kittiwake
Received a WhatsApp from Andrew to say there was a 1st Winter Kittiwake on the lake. When I got there on my bike, there was no sign, but after some searching in the drizzle, I picked out what seemed to be an adult Kittiwake. The photos (from video) are a bit distant and I only had my bins, and at the time I wasn't sure, but retrospectively I'm now confident about the ID, especially after getting the new book on Gull ID!