The white-plumed antbird (Pithys albifrons) is a small species of insectivorous bird found in the understories of rainforests. It is smaller than most species of its family (Thamnophilidae), weighing 26 grams on average. The family Thamnophilidae is known commonly as the antbirds, as they use the presence of ants (army ants in particular) to locate food. This species is largely solitary except during the breeding season, and different individuals will follow individual ant swarms.