LC
Eastern Water Rail Rallus indicus



Taxonomy

Taxonomic note

Rallus aquaticus and R. indicus (del Hoyo and Collar 2014) were previously lumped as R. aquaticus following Sibley and Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2014 Least Concern
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 6,860,000 medium
Extent of Occurrence non-breeding (km2) 8,960,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 0
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.6 - - -

Population justification: The global population has not been estimated owing to recent taxonomic splits.

Trend justification: The overall population trend is unknown (Wetlands International 2014).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bangladesh N Extant Yes
Brunei V Extant
China (mainland) N Extant Yes
Hong Kong (China) N Extant Yes
India N Extant Yes
Japan N Extant Yes
Laos N Extant Yes
Malaysia V Extant
Mongolia N Extant Yes
Myanmar N Extant Yes
Nepal N Extant Yes
North Korea N Extant Yes
Russia N Extant Yes
Russia (Asian) N Extant Yes
South Korea N Extant Yes
Taiwan, China N Extant Yes
Thailand N Extant Yes
Vietnam N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Aquatic & Marine Artificial/Aquatic - Canals and Drainage Channels, Ditches suitable non-breeding
Artificial/Aquatic & Marine Artificial/Aquatic - Excavations (open) suitable non-breeding
Artificial/Aquatic & Marine Artificial/Aquatic - Excavations (open) suitable breeding
Artificial/Aquatic & Marine Artificial/Aquatic - Irrigated Land (includes irrigation channels) suitable breeding
Artificial/Aquatic & Marine Artificial/Aquatic - Wastewater Treatment Areas suitable non-breeding
Grassland Temperate suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable non-breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Wetlands (inland) Permanent Saline, Brackish or Alkaline Lakes suitable breeding
Wetlands (inland) Permanent Saline, Brackish or Alkaline Marshes/Pools suitable breeding
Wetlands (inland) Shrub Dominated Wetlands suitable breeding
Altitude 0 - 2000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Future Minority (<50%) Rapid Declines Low Impact: 5
Stresses
Ecosystem degradation, Species mortality
Climate change & severe weather Temperature extremes Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Species mortality

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - - Non-trivial Recent
Pets/display animals, horticulture - - - International Non-trivial Recent
Sport hunting/specimen collecting - - - Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Rallus indicus. Downloaded from http://www.birdlife.org on 02/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/12/2022.