Tiny, generally uncommon finch of humid evergreen forest and edge in tropical lowlands. Usually in pairs, which associate readily with other euphonias, especially when feeding at mistletoe. Male has black head and throat with yellow forehead patch and white vent (vent yellow on Scrub Euphonias in same range). Yellow breast is richer, more golden yellow than Scrub Euphonia. Female rather drab but distinctive: pale grayish throat contrasts with dull yellowish breast and vent is white like male.