Hummingbirds?
Any of numerous New World birds of the family Trochilidae, usually very small in size and having brilliant iridescent plumage, a long slender bill, and wings capable of beating very rapidly, thereby enabling the bird to hover. Hummingbirds are small birds in the family Trochilidae. They are distinguished by their ability to hover in mid-air by rapidly flapping their wings, 15 to 80 times per second (depending on the size of the bird). They are named for the characteristic hum made by their wings, and are the only birds that can deliberately fly backwards. Hummingbirds are attracted to many flowering plants—shrimp plants, Heliconia, bromeliads, verbenas, fuchsias, many penstemons—especially those with red flowers. They feed on the nectar of these plants and are important pollinators, especially of deep-throated flowers. Most species of hummingbird also take insects, especially when feeding young. The Bee Hummingbird (Mellisuga helenae) is the smallest bird in the world, weighing 1.8 g.
