LC
Plain Gerygone Gerygone inornata



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
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 81,700
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 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 - - -
Largest subpopulations - - -
Generation length (yrs) 5.5 - - -

Population justification: The global population size has not been quantified, but the species is reported to be widespread and common in most of its range (Coates et al. 1997).

Trend justification: This population is suspected to be in decline owing to ongoing habitat loss and degradation (del Hoyo et al. 2007).


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Timor-Leste Areia Branca no Dolok Oan
Timor-Leste Atauro Island
Timor-Leste Be Malae
Timor-Leste Fatumasin
Timor-Leste Irabere - Iliomar
Timor-Leste Lore
Timor-Leste Maubara
Timor-Leste Monte Diatuto
Timor-Leste Monte Mak Fahik - Sarim
Timor-Leste Monte Tatamailau
Timor-Leste Mount Paitchau and Lake Iralalaro
Timor-Leste Subaun
Timor-Leste Sungai Klere
Timor-Leste Tasitolu
Timor-Leste Tilomar

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Savanna Moist suitable resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Gerygone inornata. Downloaded from http://www.birdlife.org on 13/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 13/11/2019.