White-throated rail
The white-throated rail or Cuvier's rail, is a species of bird in the family Rallidae. It is found in Comoros, Madagascar, Mayotte, and Seychelles. A flightless subspecies, Dryolimnas aldabranus, inhabits Aldabra, while a semi-flightless subspecies D. c. abbotti, from Assumption went extinct in the early 20th century due to introduced predators. A fourth extinct flightless subspecies or descendant species is known from fossil remains on Aldabra, and anatomically was almost identical to the Aldabra rail. This subspecies was wiped out by rising sea levels during the Pleistocene, but the atoll was recolonized by the white-throated rail after it resurfaced; this population evolved in a very similar way to the extinct subspecies, eventually evolving into the modern Aldabra rail. This is one of the very few observed instances of iterative evolution, in which a distinct population is wiped out from an area but it is recolonized by members of the source population, who evolve in the same way as the extinct population.
It is now the last living member of the genus Dryolimnas and believed to be the last flightless bird in the Indian Ocean. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical mangrove forest.
