White over red was first ringed on 21/03/18. I first saw it on 22/02/19, and again on Saturday. The only other record that I'm aware of was in Shetland on 22/05/18.
white over red
The second bird was orange over black. This bird was ringed in 2014 and I first saw it in Scarborough on 30/03/16 , so it's been around for at least 4 years.
orange over black
The third bird, green over yellow, was ringed in the harbour on 21/03/18 and was first seen by me on 22/02/19, and again on Saturday.
green over yellow
The final bird I saw, blue over white, was ringed in 2014 and was first seen on 30/03/16. Saturday's sighting was my second sighting.
blue over white