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Hummingbirds are the smallest birds in the world and can be found in the tropical regions of the Americas. Their wings can beat as fast as 80 times per second making a humming noise when they fly and that’s why they are called hummingbirds. Hummingbirds have long beaks with a very long tongue so that they can reach deep into flowers to drink their nectar. Hummingbirds live in warmer climates but their environment is changing and is getting hotter. This might only take a couple of hundred years so the bird will have to evolve quickly. The warmer climate may lead to fewer flowers so a longer beak, to get more nectar, would be a good adaptation. It may also have an extra wing so that it can migrate farther. When these three wings beat, they will make a purring sound so this new bird is called a ‘Purringbird’.