The World Record of ‘Smallest Bird’ has been achieved by Bee Hummingbird (Mellisuga helenae) of Cuba and the Isle of Youth.

In the world’s smallest Birds; its male’s length measure around 57 mm (2.24 in), weighs approximately 1.7 g while females are slightly larger. Bee hummingbird flies extremely fast – up to 80 km/hour with upto 80 swings per second.