since I forgot to take a photo, here's a drawing to make up for it, all labeled the features were observable in the field, none have been added from ID books. Drawn up with the use of notes taken in the field whilst watching the diver.
Content with our ID we watched it from a relatively close range for at least 20 minutes before finally deciding to head back to the car park. At the Redruth River mouth, it only took a minute to pick out the ICELAND GULL before finally calling it a day and taking the bus back to campus.
What a day! Many thanks Andy for helping jointly getting a positive ID on the Pacific. Unfortunately, in the excitement of getting the bird I forgot to take any digi-scope shots, all the same still a great bird! I'll do my best in future not to forget.
St Michael's Mount
looking NW over the bay towards the diver