Tern - New Jersey, USA (1 Viewer)

[drsgeo]

I'm still having trouble with my Terns. I took this picture at the Wetlands Institute in Stone Harbor, NJ two weeks ago, and narrowed it down to Common or Forster's. When I try to practice by identifying tern pictures on the web, I seem to still get it wrong much of the time. Any thoughts on this one?
Thanks!

 

[Microtus]

It's a Common Tern. The tail doesn't project beyond the folded wings, the bill is pretty red, and the primaries are darker than Forster's.

 

[KC Foggin]

Common Tern for me as well.