Hefty, long-tailed finch with a very limited range in western Panama. Its olive-greenish body with contrasting black head and bright yellow tufts at the base of each leg make this bird distinctive. Poorly known, but behavior apparently similar to Yellow-thighed Finch (no range overlap); found close to the ground, working through low tangles and bushes in pairs or small groups. Sometimes ventures up into the middle levels. Prefers forest and edges.