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Hoatzin have some pretty weird traits, with mohican crests, blue facial skin, red eyes and large, fan-shaped tails, which they used to maintain balance while navigating dense vegetation.

The hoatzin (Opisthocomus hoazin) is a South American strict folivorous bird, with a crop microbial ecosystem that ferments dietary plants. Chicks progressively become independent from the adult ...

There are approximately 9000 species of birds within the Class Aves, but only one species, the hoatzin (Opisthocomus hoazin), has evolved a foregut fermentation system that is similar to that of ...

Where it lives: Amazon and Orinoco river basins in South America What it eats: Leaves, fruits and flowers Why it's awesome: The hoatzin is often regarded as one of the world's strangest birds.

If you were to conjure up the strangest, hodge-podge creation of a bird in your mind, it would likely not be nearly as strange as the hoatzin (Opisthocomus hoazi), a species native to the Amazon ...

Scientists once thought the hoatzin – pronounced "ho-AT-zin" – traced its lineage to the Jurassic. And with its stubby wings, and spiky crest, it is certainly a dead ringer for that precursor ...

Why it's awesome: The hoatzin is often regarded as one of the world's strangest birds. Hatchlings are born with clawed wings — a rare, prehistoric trait — and adults give off a strong ...

ECUADORAN AMAZON — The hoatzin was one of the strangest birds I saw during our trip here last month. Even its name, pronounced wat-sin, sounds peculiar and like something that would arise from ...

Sir David Attenborough presents the South American hoatzin. Moving clumsily through riverside trees the funky Mohican head crested hoatzin looks like it has been assembled by a committee.