Remarkably, hot on the heels of the bird in Yorkshire, an apparent second Pacific Diver has been located at Llys-y-fran Reservoir in Pembrokeshire, although the identication of this bird is still a matter of debate. Moreover, a potential third Pacific Diver has now been found off Penzance, Cornwall...
How many more might be out there, and how many have been overlooked in the past? Perhaps some checking of old photos might be in order...