White-plumed Antbird

The White-plumed Antbird is one of the most distinctive and charismatic understory birds of the Amazon basin and Guiana Shield. Its warm chestnut-rufous plumage is offset by a spray of stiff white plumes projecting from the forehead and lores, and by bare, sky-blue skin around the eye — a combination unmistakable in the field. Both sexes look alike.

This species is an obligate army ant follower and one of the most dominant, conspicuous species at swarms, often perched low and close to the ant front, chattering constantly.

Key field marks

• Rich chestnut body overall.
• Distinctive white plume tuft projecting forward from the forehead.
• Bare cobalt-blue skin around the eye.
• No wingbars; sexes similar.

Similar species

No other antbird combines chestnut plumage with white facial plumes and blue orbital skin, making this species essentially unmistakable within its Amazonian and Guianan range. Bicolored Antbird and other ant-followers lack both the white plumes and the blue facial skin.

White-plumed Antbirds occur in the understory of humid lowland terra firme and várzea forest across the Amazon basin (Venezuela, the Guianas, northern and central Brazil, eastern Ecuador, Colombia, and Peru), generally below about 800-1,000 m. They are sedentary residents that do not migrate, though individuals move locally to track productive army ant swarms within their home range.

Voice

A persistent, sharp, chattering series of notes given almost continuously while attending a swarm, useful for locating birds even in dense understory.

Feeding

An obligate ant-following specialist, it perches low over active Eciton army ant swarms, sallying down to snatch fleeing insects, spiders, and small vertebrates disturbed by the ants, and is typically one of the most numerous and dominant species present.

Nesting and breeding

Pairs build a low open-cup nest in the forest understory. Both parents share incubation and provisioning duties, though nesting activity must be balanced against the unpredictable movements of the ant swarms the birds depend on for feeding.