You continue to descend swiftly; if nothing else, the increase in pressure of the water against the sides of your globe of air should tell you that.

As the hummingbirds speed toward Locaha, he opens his mouth and blows -- not a gust of air, but ferociously swirling currents to sweep the birds back. Those that reach his skin are... absorbed, and, unless Josh is sustaining them, extinguish. But where they hit, his outline becomes less defined, blurring with the water.

Simultaneously, his right hand gropes through the water to enclose your bubble -- your harriers have damaged his aim, but his hand is so big it probably doesn't matter.