A small brown bird of the Pampas. It builds a large stick nest, and males decorate the outside with fur, feathers, and other objects.
The Pampas study describes a small, brown bird whose male and female plumage is not conspicuously different.
It builds a large enclosed nest of sticks and twigs, with a spiral entrance tunnel leading to the brood chamber. In the study, only males decorated the outside.
An extinction-risk assessment has not been added yet.