The black-capped sparrow (Arremon abeillei) is a species of bird in the family Passerellidae, the New World sparrows. It is found in Ecuador and Peru.
Taxonomy and systematics
The black-capped sparrow was formally described in 1844 with its current binomial Arremon abeillei.
The black-capped sparrow is monotypic. However, what is now the Maranon sparrow (A. nigriceps) was previously treated as a subspecies; taxonomic systems began separating them in 2016. A later study confirmed that the two are sister species.
