The white-tailed ant thrush is one of Bwindi Impenetrable Forest’s more secretive residents. As its name suggests, it has a habit of following army ant swarms, catching the invertebrates and small vertebrates that flee in panic from the advancing ants — a feeding strategy shared by several unrelated forest bird species. The white outer tail feathers that give it its name are often the most visible feature as the bird flicks and fans its tail in the dark forest understorey.
This is a bird that rewards patient, early morning forest walks with a specialist guide in Uganda in 2027. Its secretive habits make it easy to miss for general visitors, but birders who know what to look and listen for will find it regularly in appropriate forest habitats.
Identification
The white-tailed ant thrush is a medium-sized thrush-like bird reaching about 19 centimetres. The upperparts are dark brown. The underparts are white heavily spotted with dark brown. The tail is dark with distinctive white outer feathers that flash when the bird fans its tail — the key identification feature. The bill is strong and slightly curved. The legs are long and pale.
The species is most often detected by its calls — a series of loud, clear whistled notes that carry well through the forest. The tail-fanning behaviour is conspicuous when the bird is alert or moving between feeding areas. In flight the white tail patches are briefly visible as the bird drops into cover.
Ant-Following Behaviour
Army ant swarms — columns of hundreds of thousands of driver ants moving through the forest — flush an enormous variety of invertebrates, small lizards, frogs, and insects. Several bird species have evolved the specialised behaviour of following these swarms and feeding on the fleeing animals. The white-tailed ant thrush is one of these “ant followers” in East African forests.
Finding an active army ant swarm in Bwindi can produce good views of the white-tailed ant thrush along with other ant-following species. However, the ants move continuously and can be hard to locate. Forest guides at Bwindi are familiar with areas where ants are most commonly encountered and can increase the chances of a swarm encounter.
Habitat and Distribution
The white-tailed ant thrush is found in primary and mature secondary forest across central and western Africa, including Uganda’s western forest areas. Bwindi Impenetrable Forest, Kibale National Park, and Budongo Forest are the primary Uganda locations. It favours the forest floor and lower understorey in areas of dense leaf litter where invertebrates are abundant.
Photography Tips
The white tail patches are the feature to capture for identification shots. Birds following ant swarms are often so focused on feeding that they allow closer approach than usual. Low-light forest floor photography requires a fast prime lens and high ISO — image quality is secondary to capturing the behaviour at ant swarms. The tail-fanning display when the bird is alarmed is a quick but photogenic action.
See It at Bwindi in 2027
The gorilla trekking permit costs $800 in 2027. The white-tailed ant thrush is one of the forest floor specialists that make early morning birding at Bwindi so rewarding. Contact us to arrange specialist birding combined with your gorilla trek for your 2027 Uganda visit.
