Question

Which is the smallest bird in the world?​

Answer 1

Smallest bird is a hummingbird of Cuba and of Isle of Youth.  

Males measure 57 mm in total length half of is taken by bill and tail and weighs 1.6 g.

Females are slightly larger.

Male bee hummingbirds which lives in Cuba weighs 0.056 ounces and 2.75 inch in length.  

Bill and tail counts for half of length.

Answer 2

Answer:

The Bee Hummingbird is the smallest bird in the world. It is also the only bird which can fly backward.