Have you ever heard of the smelly bird that has claws on its wings? Yes, such an animal does exist—and it’s called the hoatzin. This bird is known for its rotten scent, thanks to its hardworking ...

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-fed ...

The Amazon's Hoatzin, or "stinkbird," possesses a unique digestive system that ferments leaves, resulting in a cow dung-like odor. This adaptation allows it to consume tough foliage but weakens its ...

World's fattest parrot — on the verge of extinction 30 years ago — has record-breaking breeding season Bruce the parrot is missing his upper beak —‬ but that hasn't stopped him from becoming an ...

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 ...

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 the ...

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.