The smallest is the bee hummingbird, about two inches long.

Female bee hummingbirds are bluish green with a pale gray underside.

Birds range in size from the Bee Hummingbird to the Ostrich.

It used to be consdiered the second smallest bird in the world after the Bee Hummingbird.

The tiniest - the Cuban bee hummingbird - is the smallest warm-blooded animal in the world.

The brilliant, iridescent colors of the bee hummingbird's feathers make the bird seem like a tiny jewel.

The Bee Hummingbird produces the smallest known bird egg, which weighs half of a gram.

The bee hummingbird beats its wings an estimated 80 times per second - so fast that the wings look like a blur to human eyes.

Compared to other small hummingbirds, which often have a slender appearance, the Bee Hummingbird looks rounded and chunky.

Birds come in many sizes from the Bee Hummingbird that is only 60 mm long to the ostrich which stands 2.5 metres high.

The Bee hummingbird lives in Cuba and Isla de la Juventud.

Using bits of cobwebs, bark, and lichen, the female bee hummingbird builds a cup-shaped nest that is only about 1 inch in diameter.

The Bee Hummingbird eats half its total body mass and drinks eight times its total body mass each day.

The bee hummingbird feeds mainly on nectar, and an occasional insect or spider, by moving its tongue rapidly in and out of its mouth.

The male weighs 2 g and the female 2.3 g. This is one of the smallest birds in existence, marginally larger than the Bee Hummingbird.

A newly hatched Bee Hummingbird chick of Cuba can weigh as much as about a fingernail clipping.

The Bee Hummingbird or "Zunzuncito" (Mellisuga helenae) is a species of hummingbird.

Other sources list a typical weigh of this species as 2.2 grams, marginally heavier than the Bee Hummingbird and the Vervain Hummingbird.

Among them are the world's smallest bird, the bee hummingbird, which is the size of a bumblebee; and the smallest frog, a tiny amphibian about the size of a thumbnail.

The smallest flying vertebrates are the bee hummingbird and the bumblebee bat, both of which may weigh less than 2 g. They are thought to represent the lower size limit for endotherm flight.

Egg size tends to be proportional to the size of the adult bird, from the half gram egg of the Bee Hummingbird to the 1.5kg egg of the Ostrich.

However, other sources list this species as the world's smallest bird at 1.6 grams, a title normally held by the Bee Hummingbird (normally reported as 25 mm smaller than the Little Woodstar).

After that, Mr. Gerhart plans to travel to Cuba, expressly to spot a single bird not much bigger than his thumbnail: the extremely rare and aptly named bee hummingbird, the world's smallest bird.

Fauna includes five species of bats, numerous birds (notably the Bee hummingbird), as well as the Yellow-Striped Pygmy Eleuth (Eleutherodactylus limbatus), one of the smallest frogs in the world, and various lizards such as the Anolis luteogulartis.

The Bee Hummingbird or Zunzuncito (Mellisuga helenae) is a species of hummingbird that is endemic to dense forests and woodland edges on the main island of Cuba and (formerly) on the Isla de la Juventud, also part of the nation of Cuba.

The Bee Hummingbird or "Zunzuncito" (Mellisuga helenae) is a species of hummingbird.

The Bee Hummingbird or Zunzuncito (Mellisuga helenae) is a species of hummingbird that is endemic to dense forests and woodland edges on the main island of Cuba and (formerly) on the Isla de la Juventud, also part of the nation of Cuba.