The smallest hummingbird in the world is as long as a toothpick and weighs less than a cube of sugar. At just over two inches long and weighing a mere two grams, the bee hummingbird (Mellisuga helenae ...

The Bee Hummingbird (Mellisuga helenae) is the smallest bird in the world by both length and weight, measuring only 5.5 cm (2.2 inches) in length and mass, equal to less than a dime, males being 1.95 ...