Great video of a couple of hawk moths. These are not actually hummingbirds they are part of the Sphingidae family of moths. Also called sphinx moths.
These moths actually fly like hummingbirds having the same type of flight abilities. Although not as fast as hummingbirds for an insect they are relatively fast reaching a top speed of 12Mph!
Thanks to @HortErotica for this video of two of them on a plant.
— HortErotica (@HortErotica) October 23, 2016