Where's a tern or two when you need them?

The only reliable arbiter in the Endless Enigma of "Pogies or Bass?" that I'm faced with is a tern or two. We've been inundated with pogies (bunker) in the backyard and their surface antics mimic that of feeding bass so at a distance, it's tough to tell who's who. Terns never mistake flipping pogies for feeding bass so if there's some surface action that last more than 2 min, if a tern doesn't show up, you know it's not worth grabbing the keys and heading for the boat, which is the quandary I'm currently faced with.

OK 2 mins is up and no terns, I can go back to the Honey Do list...