LC
Pale-blue Monarch Hypothymis puella



Taxonomy

Taxonomic note
Hypothymis azurea and H. puella (del Hoyo and Collar 2016) were previously lumped as H. azurea 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
2016 Least Concern
Species attributes

Migratory status full migrant Forest dependency medium
Land-mass type Average mass 13 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 567,000 medium
Severely fragmented? no -
Population and trend
Value Data quality Derivation Year of estimate
Number of mature individuals unknown not applicable not applicable 0
Population trend stable suspected -
Generation length (years) 4.2 - - -

Population justification: The global population size has not been quantified, but the species is described as generally widespread and common throughout its range (del Hoyo et al. 2006),

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 Non-breeding Passage
Indonesia 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 Plantations suitable breeding
Artificial/Terrestrial Plantations suitable non-breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable non-breeding
Forest Subtropical/Tropical Dry suitable breeding
Forest Subtropical/Tropical Dry suitable non-breeding
Forest Subtropical/Tropical Moist Lowland major breeding
Forest Subtropical/Tropical Moist Lowland major non-breeding
Forest Subtropical/Tropical Swamp suitable breeding
Forest Subtropical/Tropical Swamp suitable non-breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Altitude   Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - non-trivial recent

Recommended citation
BirdLife International (2023) Species factsheet: Hypothymis puella. Downloaded from http://datazone.birdlife.org/species/factsheet/pale-blue-monarch-hypothymis-puella on 26/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 26/09/2023.