The hoatzin (Opisthocomus hoazin)is a South American folivorous bird, with a crop microbial ecosystem that ferments dietary plant material. Juvenile birds progressively become independent from the chicks fed by adults ...

The hoatzin is the only folivorous bird known to have foregut fermentation. Since changes in plant availability must influence the dietary choices and affect the structure of the digestive microbiota in herbivores, we ...

The Hoatzin is a unique South American herbivorous bird and the smallest vertebrate to have a fermentative crop, similar to the cow rumen. Like bacteria, fungi play an important role in ...

The Hoatzin is one of the world’s few obligate folivorous birds inhabiting the riverine forests of northern South America. It is the smallest vertebrate to have an enlarged foregut, in which plant structural carbohydrates ...