Ruby-throated Hummingbird IV

A hummingbird's legs are very short and it's feet are small and are not designed for walking.  The relatively long toes are good for gripping and for preening.  Even for something as simple as turning around on a branch, the hummingbird will take wing and turn while hovering rather than try to negotiate a turn with it's feet.  

I had a friend whose brother called him one day and asked him what he was doing.  He told him he was watching a hummingbird sitting on a branch, to which the brother replied, "It can't be a hummingbird.  Hummingbirds don't have any feet."