Chestnut-capped warbler explained

The chestnut-capped warbler (Basileuterus delattrii) is a New World warbler native from Guatemala to Venezuela. It was split from the rufous-capped warbler (Basileuterus rufifrons) as a distinct species by the IOC in 2021.^[1]

Notes and References

1. Web site: Species Updates – IOC World Bird List. 2021-06-13. en-US.