The black-capped donacobius (Donacobius atricapilla) is a distinctive South American bird known for its loud presence across a diverse range of tropical wetlands, including Argentina, Brazil, and as far north as Panama. Originally described in the 18th century and once misplaced as an African species, it has a complex taxonomic history, having been associated with thrushes, mimids, wrens, and now placed in its own unique family, Donacobiidae, based on the modern classifications. Found in Amazonian habitats as well as other wetlands up to Northern Argentina, this bird is easily spotted due to its habit of perching visibly and singing in pairs, often engaging in duets. These monogamous birds are known for their cooperative breeding behavior, with offspring staying with parents to help raise younger siblings. The species name 'atricapilla' refers to its black-haired appearance, hearkening back to Latin roots, while the bird’s life closely tied to reeds is captured in its genus name, Donacobius.