The species is sometimes considered to have been conspecific with the Iphis Monarch.
Monarch | monarch | Coronation of the British monarch | Monarch butterfly | Britain's Real Monarch | Monarch's Way | Lost Monarch (tree) | Lost Monarch | The Monarch Office Tower | Monarch Airlines | Iphis Monarch | Elara (monarch) | reigning monarch's official birthday | Pied Monarch | Monarch Butterfly | Monarch (butterfly) | Monarch Beach, Dana Point, California | Monarch Beach | Monarch Award | Mercury Monarch | Coronation of the British Monarch |
The reserve is the primary nesting site of several endangered species, several of which are endemic, including the Eiao Marquesan Warbler (Acrocephalus mendanae aquilonis) and the Iphis Monarch (Pomarea iphis).