Native to Cuba and the Isla de la Juventud, the bee hummingbird is the smallest bird in the world. Adult males measure about 2.2 inches (5.5 cm) in length and weigh just 1.6 grams.
Found in Mexico and Central America, this species of hummingbird is tiny, with males measuring around 2.4 inches (6 cm) in length.
This tiny owl is found in the Americas, from the southwestern United States to Central America. It is one of the smallest owls, measuring about 5.5 inches (14 cm) in length.
The goldcrest is Europe's smallest bird, measuring around 3.5 inches (9 cm) in length. It is known for its distinctive yellow crest.
Similar in size to the goldcrest, the firecrest is another tiny European bird known for its striking appearance, with a fiery orange crown stripe.
Native to North America, the pigmy tit measures about 4 inches (10 cm) in length. It is a small, active bird often seen in flocks.
Found in the Philippines, this tiny woodpecker species measures approximately 3.9 inches (10 cm) in length.
Native to Europe, Asia, and North Africa, the Eurasian wren is one of the smallest European birds, measuring around 3.9 inches (10 cm) in length.
This small kingfisher is found in sub-Saharan Africa. It measures about 4 inches (10 cm) in length and is known for its striking plumage.