the sign here is wrong. It isn't Phalacrocorax varius (I'm very familiar with them), but rather one of the subantarctic shags. I don't have any books with me so not sure which one but it will be one of the species from the Imperial Shag complex.
You are right Chlidonias ! I did look only at the sign but this really doesn't even look like a Pied cormorant - which I have also seen already several times, for example at Burgers Zoo in the Netherlands. Will try to find out which species it actually is....
