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The Buffy-fronted Seedeater is a passerine bird in the family Thraupidae. Also known as chanchão, xexéu (Santa Catarina), catatau, chacha and pointer.
It measures about 12.5 centimeters in length and weighs between 19.8 and 21 grams (del Hoyo et al. 2014).
Its differential is the pronounced malar region. There is a lot of variation in the color. Predominantly the plumage is colored in light olive or beige in the upper parts, with two yellowish white wing bars. His head has darker tones on his forehead and pale post-eyebrow. Its throat is whitish, mainly in adult males. It is easily identified by the unmistakable vocalization of male individuals that resembles the sound of a strong electric pulse (Neotropical Birds, 2010).
Females are similar to males, but more greenish and without the white post-ocular stripe; as well as younger males, they do not have the head pattern so evident, although they also have clear wing bars.