Black-throated Trogon Trogon rufus is split into four species: Northern Black-throated Trogon (Trogon tenellus), Choco Black-throated Trogon (Trogon cupreicauda), Atlantic Black-throated Trogon (Trogon chrysochloros) and Amazonian Black-throated Trogon (Trogon rufus).