Antbird, a nonmigratory bird of Central and South America. There are 50 genera of antbirds and more than 230 species. Antbirds range in length from 4 to 14 inches (10 to 36 cm). Typically, the male is dark gray to black with white patches; the female, red or olive. Both sexes have hooked bills.

Antbirds are found primarily in tropical rain forests. Their name comes from the habit of most species of following colonies of predatory army ants and feeding on the spiders, lizards, and small rodents that try to escape the ants. Weak fliers, antbirds spend most of their time on the ground. They mate for life and build cup-shaped nests made of grasses and leaves. The female typically lays two or three buff-colored eggs with dark spots. Both parents incubate the eggs and rear the young.

Antbirds make up the family Formicariidae. Some of the genera are grouped together to form subgroups. These include the antwren, antvireo, antthrush, antcreeper, and antshrike subgroups.