[ThirstyMan]

The "breaching shark" isn't coming out of the water for some fresh air, as whales do. They're snatching for food, right? What is it most likely, a bird? another fish he trailing, gone airborne?

[Calpernia]

They do breach for birds.

I believe this is one in its mouth here:

[eastforker]

likely another fish. Have seen it many time with bass chasing shad and speckes chasing croaker. Fish ambush their meals and attack from below. A fish near the surface is a target meal for larger fish.

[Osage Orange]

They're snatching for food, right? What is it most likely, a bird? another fish he trailing, gone airborne?

Or surfboards.....