The Réunion Swamphen, Réunion Gallinule or Oiseau bleu is a hypothetical species of extinct rail from Réunion, Mascarenes until now only known from reports of travellers.
The Porphyrio coerulescens is classified as Extinct (EX), there is no reasonable doubt that the last individual has died.
Nothing known about the Porphyrio coerulescens