Pacific GP (seen again today) which looks 'bobble-headed', thicker billed, leggier (longer tibia) and generally thinner in build.
Here I was looking at two birds. The first time I saw PGP it was on a Scottish estuary in a flock of 2000+ GPs. All were resting in a tightly packed flock and we had to wait for hours before the rising tide finally forced them to wake up, stretch their wings and fly. White axillaries on GP and
Very nice bird.
Having a shiver.