Aramides ypecaha
The Giant Wood Rail, *Aramides ypecaha*, lives up to its name as the largest living rail species, typically measuring 41-46 cm (16-18 inches) in length and weighing between 700-1100 grams (1.5-2.4 lbs). This imposing rail is characterized by its distinctive plumage: olive-brown upperparts, an ash-grey head, neck, and breast, contrasting with a black belly and undertail coverts. A prominent white patch below the eye and a bright white throat are key identification marks, along with its robust,...
Primarily inhabiting dense freshwater wetlands such as swamps, marshes, reedbeds, and wet grasslands, the Giant Wood Rail also utilizes gallery forests and rice fields. It is found from sea level up to around 800 meters in elevation, always in close proximity to standing or slow-moving water.
An omnivorous species, the Giant Wood Rail feeds on a diverse array of invertebrates including insects, worms, and snails, as well as small vertebrates like frogs and fish. It also consumes plant material such as seeds and aquatic vegetation, primarily foraging by probing in mud and shallow water.
Despite its considerable size, the Giant Wood Rail is a largely secretive and elusive bird, spending most of its time hidden within dense vegetation, though it can be active both by day and during twilight hours. It forages by walking deliberately through mud, leaf litter, and shallow water, prob...
The Giant Wood Rail is a non-migratory, resident species found exclusively in the Neotropics of South America. Its primary distribution encompasses southern Brazil, Paraguay, Uruguay, and northeastern Argentina, extending west into eastern Bolivia. The species is widespread throughout its range, ...
Least Concern
- The Giant Wood Rail is the largest living species in the rail family (Rallidae), sometimes reaching over 2.4 pounds in weight. - Its scientific name, *Aramides ypecaha*, is thought to be an onomatopoeic representation of its loud and distinctive calls. - Despite its impressive size, it is notor...