The Chestnut Weaver's breeding male stands out for its chestnut body and black face. Males weave nests from grasses and hang them from branches.
A breeding male is cinnamon to chestnut, with black covering the head and upper breast like a mask. Non-breeding males and females lack this black pattern.
It mainly eats seeds. The male weaves a hanging grass nest, while the female incubates and feeds the young. Many nests can gather at some breeding sites.
An extinction-risk assessment has not been added yet.