These are REALLY similar. And some of the things we use to separate Forster's Tern from Common Tern in the spring won't work in the fall. Let's talk about how to separate these two birds!
We were lucky enough to have a juvie Buff-breasted Sandpiper land in front of us during Tuesday Morning Birding. And I do mean RIGHT in front of us, click the link for the vid and the discussion!