LC
Fiji Whistler Pachycephala vitiensis



Justification

Justification of Red List Category
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population size has not been quantified, but the species was reported to be common, prior to being split (Flegg and Madge 1995, Coates et al. 1997, Coates 1990, Doughty et al. 1999).

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Distribution and population

Subspecies P. v. graeffii occurs in Waya and Viti Levu, in W Fiji. Subspecies P. v. optata occurs in Viti Levu (SE coast) and Ovalau. Subspecies P. v. aurantiiventris occurs in Yanganga and Vanua Levu (except SE coast), in N Fiji. Subspecies P. v. ambigua occurs in Vanua Levu (Cankaundrove Peninsula), Rabi and Kioa. Subspecies P. v. torquata occurs in Taveuni. Subspecies P. v. koroana occurs in Koro (C Fiji). Subspecies P. v. bella occurs in Vatu Vara (EC Fiji). Subspecies P. v. kandavensis occurs in SW Fiji (Vanua Kula, Bega, Ono, Kadavu). Subspecies P. v. vitiensis occurs in Ngau (C Fiji). Subspecies P. v. lauana occurs in S Lau Archipelago (Ogea Levu, Fulanga, Wangava), in SE Fiji.

Acknowledgements

Text account compilers
Butchart, S., Ekstrom, J. & Hardenbol, A.


Recommended citation
BirdLife International (2019) Species factsheet: Pachycephala vitiensis. Downloaded from http://www.birdlife.org on 26/06/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/06/2019.