Wiktionary
chestnut rail
n. A bird from the family Rallidae, ''Eulabeornis castaneoventris''.
Wikipedia
Chestnut rail
The chestnut rail (Eulabeornis castaneoventris) is a species of bird in the family Rallidae. It is the only species in the genus Eulabeornis. It is found in Australia and Indonesia. Its natural habitat is subtropical or tropical mangrove forests.