LC
Plain Gerygone Gerygone inornata



Taxonomy

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.

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

Red List history
Year Category Criteria
2024 Least Concern
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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 81,700 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 3 years - - -

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). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 3.6% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.

Trend justification:   .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Indonesia extant native yes
Timor-Leste extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Indonesia Bipolo
Indonesia Buat - Soe
Indonesia Camplong
Indonesia Gunung Mutis
Indonesia Gunung Timau
Indonesia Kateri - Maubesi
Indonesia Manipo
Indonesia Oenasi
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 0 - 2500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Plain Gerygone Gerygone inornata. Downloaded from https://datazone.birdlife.org/species/factsheet/plain-gerygone-gerygone-inornata on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.