Yellow-faced siskin has a length of about 10 centimeters. Sexual dimorphism is very evident, in males the forehead, the area between the sides of the beak and the eyes and the vertex are black, while the back and shoulder blades are olive green, the undertail is white and the rest of the body it is yellow. The females, in fact, lack the body yellow present only in the form of shades on the ventral area: the black cap is also missing, replaced (as is the yellow of the ventral areas) by olive green.

Habitat: widespread in north-eastern Brazil.

Feeding: granivorous, it feeds in particular on small seeds, but also on berries and sprouts. In the reproductive period, even small insects increase in energy requirements.