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Slender-billed Flufftail Sarothrura watersi

IUCN Red List Criteria

Critically Endangered  
Endangered C2a(i) 
Vulnerable B1ab(i,ii,iii,iv,v);C2a(i);D1+2 

IUCN Red List history

Year Category
2012 Endangered
2008 Endangered
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type shelf island
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 5,900 medium
Number of locations 3 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 250-999 medium Estimated 1998
Population trend Decreasing medium -
Number of subpopulations 2-100 - - -
Largest subpopulation 51-250 - - -
Generation length (yrs) 3.7 - - -
Population justification: Although the species may be overlooked, owing to its very secretive behaviour, very little suitable habitat is likely to remain (P. B. Taylor in litt. 1999) and its total population may number considerably fewer than 1,000 individuals, thus a range of 250-999 mature individuals is assigned to the species. This equates to 375-1,499 individuals in total, rounded to 350-1,500 individuals here.
Trend justification: This species is suspected to be in decline owing to the ongoing conversion of marshes for cultivation, mostly as rice paddies (Langrand and Goodman 1995), although the likely rate of decline has not been estimated.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Madagascar Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Madagascar Ranomafana National Park site factsheet
Madagascar Torotorofotsy Wetlands site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major resident
Altitude 950 - 1800 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2014) Species factsheet: Sarothrura watersi. Downloaded from http://www.birdlife.org on 23/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/11/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Rallidae (Rails, Gallinules, Coots)
Species name author (Bartlett, 1879)
Population size 250-999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 5,900 km2
Country endemic? Yes
Links to further information
- Summary information on this species