LC
Black-tailed Monarch Symposiachrus verticalis



Taxonomy

Taxonomic note

Symposiachrus verticalis and S. ateralbus (del Hoyo and Collar 2016) were previously lumped as Monarcha verticalis following Sibley and 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
2018 Least Concern
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type Average mass 22 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 161,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 4.3 years - - -

Population justification: The global population size has not been quantified.

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


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
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2023) Species factsheet: Symposiachrus verticalis. Downloaded from http://datazone.birdlife.org/species/factsheet/black-tailed-monarch-symposiachrus-verticalis on 06/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 06/12/2023.