All three species, the Réunion Owl, Mauritius Owl, and Rodrigues Owl, are now extinct.

The extinction of the Réunion Kestrel, which thus seems to have been complete around 1700, is something of a mystery, just as that of the Réunion Owl.

The Réunion Owl (Mascarenotus grucheti) was a small owl that occurred on the Mascarene island of Réunion, but became extinct before living birds could be described; it is only known from subfossil bones.

H Map Very little of Réunion's natural history survived long enough to make it into the museum, but there are a few displays of extinct and nearly extinct native species, including the Réunion owl, kestrel, parrot and ibis.

On Réunion, it lived alongside the Réunion Ibis, the Hoopoe Starling, the Mascarene Parrot, the Réunion Parakeet, the Réunion Swamphen, the Réunion Owl, the Réunion Night Heron, and the Réunion Pink Pigeon.

The Réunion Owl (Mascarenotus grucheti) was a small owl that occurred on the Mascarene island of Réunion, but became extinct before living birds could be described; it is only known from subfossil bones.