Back هواتزين Arabic هواتزين ARZ Opisthocomus hoazin AST Timpumo (Opisthocomus) AVK Гоацин-тауыҡ Bashkir Хоацин Bulgarian Hoatzin Breton Hoatzín Catalan Opisthocomus hoazin CEB Hoacin chocholatý Czech
| Hoatzin | |
|---|---|
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| Scientific classification | |
| Kingdom: | |
| Class: | |
| Order: | Opisthocomiformes
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| Family: | Opisthocomidae
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| Genus: | Opisthocomus
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| Binomial name | |
| Ophisthocomus hoazin | |
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| Range of the hoatzin | |
The hoatzin (Opisthocomus hoazin) is a tropical bird found in swamps, river forests, and mangroves of the Amazon and the Orinoco delta in South America.
They are the only bird which eats leaves as a main part of their diet. Their gut has special adaptations which help their digestion.
The hoatzin is also notable for having young with claws on two of their wing digits. They are the only living member of the family Opisthocomidae. Its close relatives probably died out long ago. There has been much debate about the hoatzin's relationships with other birds.