Barn owls can hover pretty well.
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Most birds can hover it is just a matter of control and ability . That the is your say how well can they do it. Watch the chaffinches sitting on a perch then they fly out grab a bug and fly back they hover for a sit second before they grab it but this is not theirain feed source so they ate not designed to do it very efficiently. Watch a bee eater or roller do the same thing and it is smooth as silk. Watch any bird landing 0n a branch and ignore hovers for the last couple of seconds