Oya Tabu White-eye (Zosterops crookshanki) | Details

Oya Tabu White-eye Zosterops crookshanki

Current view: Data table and detailed info

Taxonomy

Taxonomic note

Zosterops fuscicapilla and Z. crookshanki (del Hoyo and Collar 2016) were previously lumped as Z. fuscicapilla following Sibley & Monroe (1990, 1993).

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	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

Migratory status	not a migrant	Forest dependency	medium
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,900 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	-	-	-
Generation length	2.55 years	-	-	-

Population justification: The global population size has not been quantified. The species has been described as "locally common" (Pratt and Beehler 2015). However, it has been stated that prior to the discovery on Fergusson it was only known from 2 female specimens from Goodenough (Pratt and Beehler 2015), which would suggest that this species may not be that common. This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 0.2% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore the species' population size is probably stable.

Trend justification: .

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Papua New Guinea	extant	native		yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Rural Gardens	suitable	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1200 - 2100 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Oya Tabu White-eye Zosterops crookshanki. Downloaded from https://datazone.birdlife.org/species/factsheet/oya-tabu-white-eye-zosterops-crookshanki 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.