The Bamboo Flatbill occurs in the Amazon region and forages often in Guadua bamboo stands in floodplain forest.
The head and back are yellowish olive. It has a thin yellowish eyebrow and eyering, a black bill, and two yellow-olive wingbars. The breast is yellow-olive with faint streaks, and the rest of the underparts are yellow.
The account says it feeds almost exclusively in stands of Guadua bamboo in floodplain forest.
An extinction-risk assessment has not been added yet.