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Gull-billed Tern (1 Viewer)

Cantobello

Well-known member
I first thought a gull-billed tern because of the location (St.Maarten) and the relative broad eyebrow stripe behind the eye, head (white above) and wing pattern. But the bill seems a little thin. Who can comment?
Because of the patterns I ruled out other options such as common (wings darker, especially outer primaries), whiskered (tail seems like that on the photo, but wings are too whitish and eyemark is different), foster (different eyemark) and roseate (i see no outer tail feathers, but can this be a juvenile?).
It could be a least tern, but the cap seems too white.

Thanks,
Ronald
 

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