A mile a minute. Note that this is not very fast (in fact, under the speed limit on most highways in the US!). While this is the standard answer, dissenters have suggested the question is ill-posed, since time flies in no measurable sense of the word, and this figure of speech need not be conjugated.
Yes.
they can fly as fast as a chickadee
It depends on how fast you fly
I think they can fly pretty fast.
humming birds fly so fast because they are so fast
fast
As fast as you can throw them ;)
Fast enough.
How fast is an albatross
bobwhites can fly quite fast but I am not exactly sure of how fast
10
nope.... run fast but not fly