Hummingbirds and sunbirds are not closely related, yet both have evolved long beaks for reaching into flowers to drink nectar. Hummingbirds live in the Americas, while sunbirds are found in Africa, Asia, and Australia. Both groups also developed long tongues and the ability to hover while feeding.
This is a classic example of convergent evolution, where unrelated organisms develop similar traits because they face comparable environmental pressures—in this case, the need to feed on nectar from deep flowers.