CR
Bali Myna Leucopsar rothschildi



Taxonomy

Taxonomic note

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
B1ab(v);C2a(i,ii);D B1ab(v);C2a(i,ii);D B1ab(v);C2a(i,ii);D1+2

Red List history
Year Category Criteria
2016 Critically Endangered B1ab(v);C2a(i,ii);D
2015 Critically Endangered B1ab(v);C2a(i,ii);D
2013 Critically Endangered B1ab(v);C2a(i,ii);D
2012 Critically Endangered B1ab(v);C2a(i,ii);D
2010 Critically Endangered B1a+b(v); C2a(ii); D1
2009 Critically Endangered B1a+b(v); C2a(ii); D1
2008 Critically Endangered
2006 Critically Endangered
2004 Critically Endangered
2000 Critically Endangered
1996 Critically Endangered
1994 Critically Endangered
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - shelf island
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 38 medium
Number of locations 1 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1-49 medium estimated 2009
Population trend Decreasing good 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 1 - - -
Largest subpopulations 100 - - -
Generation length (yrs) 4.1 - - -

Population justification: There were an estimated c. 50 individuals in the West Bali National Park in 2008 (Dijkman in litt. 2008). On Nusa Penida, the population was recorded as 65 adults and 62 juveniles in 2009 (C. Kenwrick in litt. 2009). However, given that the population estimate should only comprise of mature individuals, and the IUCN stipulates re-introduced individuals must have produced viable offspring before they are counted as mature individuals, the current population of 115 individuals should be considered a maximum, and as such the population is precautionarily assumed to be fewer than 50 individuals and mature individuals.

Trend justification: The wild population has been maintained only by release of captive birds, so is essentially gradually declining. However, signs from the reintroduced colony on Nusa Penida and West Bali National Park are promising, with both populations breeding and apparently increasing.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Indonesia N Extant Yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations possible resident
Forest Subtropical/Tropical Dry major resident
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry suitable breeding
Altitude 0 - 175 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Unknown Unknown
Stresses
Competition

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent
Pets/display animals, horticulture - - - International Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Leucopsar rothschildi. Downloaded from http://www.birdlife.org on 22/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/10/2017.