Besides scanning for prey from an exposed perch, what technique do Belted Kingfishers use over water?

Answer

Hover over the water using rapid wing beats

They are capable of hovering above the water surface by beating their wings rapidly, a technique shared by some other water-specialist kingfishers.

Besides scanning for prey from an exposed perch, what technique do Belted Kingfishers use over water?
speciesbirdNorth Americakingfisher