Kiwi birds too: https://www.youtube.com/watch?v=sdUUx5FdySs

(Caution: On topic, but saddest short animation ever made)

Nice link. Makes you wonder what biomimicry might bring to drones in a couple of generations. Maybe in addition to a set of propeller motors, you could have a couple of servos running small deployable "fan-like fins" (or is that fin-like fans?) for fast maneuvering where just changing prop speed won't quite cut it.