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The five most unique birds in the world

10,000 Birds

But you won’t find Ostrich or another ratite in first place on Jetz et al.’s The Cuckoo Roller — today found only in Madagascar and Comoros — is an oddball bird with a puffy head and a chameleon-eating habit. Oilbirds ( Steatornis caripensis ) in Ecuador © Corey Finger. Cuckoo Roller (Leptosomus discolor).