Terns in the Beagle channel, Ushuaia in mid November (1 Viewer)

[Garrulous Jay]

Are these South American terns? Is the white lores on one of the sitting birds (to the right) significant? Also many of these birds show a characteristic semi-circular indentation in their black cap, just below the eye and I can't see any reference to it in my books. Anyone care to comment?

 

[THE_FERN]

Are these South American terns?

Y

Is the white lores on one of the sitting birds (to the right) significant?

Dunno, doubt it

Also many of these birds show a characteristic semi-circular indentation in their black cap, just below the eye

Eyelids of the closed eyes

 

[Garrulous Jay]

Thank you The_Fern