Hummingbird

Hummingbirds are small and colourful birds with iridescent feathers.

Meaning:
Iridescent --- varying in colour when seen in different lights or from different angles.

They are called as hummingbirds because of the humming sound created by flapping their wings which is audible to human beings.

They flap their wings about 80 times per second.

Hummingbirds can fly up, down, right, left, forward, backward and even upside down. They can also hover in the mid-air.

They can use their feet only for perching (sit on a branch of a tree) but not for hopping or walking.

They have a specialised long and tapered bill to obtain nectar from the center of long tubular flowers.

Tapered --- Becoming gradually narrower

Hummingbirds eat flower nectar, tree sap, insects and pollen.

Tree Sap: (the watery solution of sugars, salts and minerals that circulate through the vascular system of a plant)

Pollen:

Hummingbirds have long tongue with which they lick their food.

The lifespan of hummingbirds are about 3-5 yrs. There are more than 300 different species of hummingbirds in the world. The smallest bird in the world is bee hummingbird. It is in Cuba.