In the Guatemala account, the White-naped Brush Finch is marked by a white crown stripe and yellow throat. It searches the ground in thickets at forest edges.
Adults have black sides to the head and a white stripe running from the crown to the nape. The throat is bright yellow, and the chest and flanks are grey-white. Juveniles have a sooty dark head and a less defined, brown-tinged crown stripe.
In Guatemala it uses secondary growth, thickets, and dense forest edges. It searches leaf litter for insects, spiders, and seeds.
An extinction-risk assessment has not been added yet.