The Barred Antshrike (Thamnophilus doliatus) is a species of passerine bird of the antbird family. It is found in the neotropics from Mexico, through Central America, Trinidad and Tobago, and a large part of South America east of the Andes as far south as northern Argentina, Bolivia and Paraguay. It has a wide range of habitats in both humid and arid regions. It will even occur in gardens and parks. It is one of the most common antbirds throughout its extensive range.
The adult is about 6.5 inches in length and weighs less than 1 ounce. The male is barred all over with black and white. It has a white-based black crest that is raised in display. The female is reddish-brown above with a chestnut colored crest. The sides of her head and neck are streaked with black. The underparts are rich tan-brown. There is variable color morphing between subspecies.
The Barred Antshrike is typically found in pairs. These birds are territorial. The female lays two creamy-white eggs with purple marking in a deep cup nest in a shrub. Both adults will incubate the eggs for 14 days before hatching. The chicks fledge in another 12 to 13 days. This insectivorous species feeds mostly on ants and other arthropods near or on the ground. It will occasionally follow columns of army ants, and will also take in small lizards and berries. It has a chuckling hu-hu-hu-hu-hu-hu song, often performed as a duet by a pair of birds, or a growled graaaaa.