The Many-colored Rush Tyrant (Tachuris rubrigastra) is a tiny bird of South America’s marshes and reedbeds, found from Chile and Argentina to Peru and Bolivia. Measuring only about 10 centimeters long, it is one of the smallest members of the large tyrant flycatcher family (Tyrannidae).

Despite its bright, patchwork plumage, the most remarkable fact about this species is its specialized habitat and behavior. It lives almost entirely within dense reeds and cattails, rarely venturing into open areas. Its nest — a delicate, suspended cup woven from plant fibers — is attached to vertical reed stems just above the water, protecting it from land predators.

Unlike most flycatchers, which sally into the air after insects, the Many-colored Rush Tyrant hunts by hopping among reeds, picking small invertebrates and occasionally seeds from leaves and stems. Its rounded wings and strong legs are perfectly adapted for this confined, vertical world.

Genetically, it’s a puzzle: though long considered a typical flycatcher, recent studies suggest it may represent one of the most ancient and isolated branches of the tyrant family, a relic of early South American bird evolution.

Today, it remains locally common but vulnerable to wetland drainage — a small, vivid survivor of the continent’s disappearing marsh ecosystems