What is the world's smallest bird?

The world's smallest bird is the Bee Hummingbird, also known as the Zunzuncito, which is native to Cuba. The males of this species measure only about 2.25 inches (5.7 centimeters) in length and weigh about 0.06 ounces (1.8 grams). The females are slightly larger, measuring around 2.4 inches (6.1 centimeters) and weighing about 0.07 ounces (2 grams). Despite their small size, these birds are incredibly fast and agile.

Bee Hummingbirds are known for their iridescent feathers, which can appear blue, green, or reddish-pink depending on the angle of the light. They are also known for their distinctive chirping songs, which are used to communicate with other birds and to attract mates during breeding season.

These tiny birds feed primarily on nectar and small insects, and they play an important role in pollination. Unfortunately, their population has been in decline due to habitat loss and climate change.