ABSTRACT
Antthrushes are a small group of "galinha-do-mato" closely related to Thamnophilidae and Conopophagidae, and are represented by 11 species in two genera exclusively in the Neotropics. Antthruses are smallto medium-sized birds well adapted to foraging near and on the ground with long legs and a short, rounded tail. All antthrushes follow a Complex Basic Strategy, although they vary in sexual dichromatism and preformative molt extent. At the study site Formicarius colma undergoes a partial to incomplete preformative molt and is sexually dichromatic, where males exhibit more black on the throat and face. Conversely, Formicarius analis apparently undergoes a complete preformative molt and sexes are similar in all plumages. At least at the sites and in a few other well-documented species, both male and female antthrushes exhibit brood patches incubating two to three egg clutches, which is consistent with their close taxonomic relationship with Thamnophilidae in which both sexes share in incubation.
