Choco Warbler

About the Choco Warbler

The Choco warbler (Myiothlypis chlorophrys) is a species of bird in the family Parulidae, the New World warblers. It is found in Colombia and Ecuador. The Choco warbler was formally described in 1907 as a subspecies of the two-banded warbler with the trinomial Basileuterus bivittatus chlorophrys. At some time in the twentieth century it was reassigned as a subspecies of what was then called the golden-bellied warbler (Basileuterus chrysogaster). By 2007 taxonomic systems had begun to resurrect genus Myiothlypis, which had been erected in 1850, for chrysogaster and many other species.

The above assignment lasted into the twentieth century. By 2012 the IOC had split the golden-bellied warbler into the Choco warbler and the Cuzco warbler; the latter retained the binomial Myiothlypis chrysogaster. BirdLife International's Handbook of the Birds of the World (HBW) did the same in 2016, though it kept the name "golden-bellied" warbler for chrysogaster until 2024. The Clements taxonomy adopted the split in 2022. However, as of February 2026 the South American Classification Committee retained the two-subspecies golden-bellied warbler.

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