VU
Celestial Monarch Hypothymis coelestis



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
- - C2a(i)

Red List history
Year Category Criteria
2018 Vulnerable C2a(i)
2016 Vulnerable A2c+3c+4c;C2a(i)
2012 Vulnerable A2c+3c+4c;C2a(i)
2008 Vulnerable A2c; A3c; A4c; C2a(i)
2004 Vulnerable
2000 Vulnerable
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Land-mass type - shelf island
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 828,000 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1000-2499 medium estimated 2016
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-9 - - -
Decline (10 years/3 generation past and future) 1-9 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations 1-89 - - -
Generation length (yrs) 4.2 - - -

Population justification: While the population size had previously been estimated to fall in the band 2,500-9,999 mature individuals, the scarcity and patchiness of records suggest that the population size of this species may in fact be far smaller (S. Mahood in litt. 2013, R. Hutchinson in litt. 2016, A. Dwarshuis in litt. 2016). It is highly plausible that the population size may be <2,500 mature individuals, and could be placed in the range 1,000-2,499 mature individuals, equating roughly to 1,500-3,750 individuals in total.

Trend justification: Lowland forests in the Philippines have been largely deforested in the past, and remaining fragments remain under intense pressure from illegal logging, conversion to wood-pulp plantations and agriculture, and logging and mining concessions. Yet, much of the habitat loss within the species's range occurred >3 generations ago. A reassessment of habitat loss (Tracewski et al. 2016) suggests that the current rate of decline may be lower than 5% over three generations. However, it has been suggested that the population size of this species numbers less than 2,500 mature individuals (S. Mahood in litt. 2013, R. Hutchinson in litt. 2016, A. Dwarshuis in litt. 2016).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Philippines N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Philippines Agusan Marsh
Philippines Angat Watershed Forest Reserve
Philippines Basilan Natural Biotic Area
Philippines Bislig
Philippines Central Sierra Madre mountains
Philippines Cuernos de Negros
Philippines Mariveles mountains
Philippines Mount Cabalantian - Mount Capoto-an complex
Philippines Mount Guiting-guiting Natural Park
Philippines Mount Hilong-hilong
Philippines Mount Kaluayan - Mount Kinabalian Complex
Philippines Mount Kambinlio and Mount Redondo
Philippines Mount Kampalili-Puting Bato
Philippines Mount Matutum Protected Landscape
Philippines Mount Sugarloaf
Philippines North Eastern Cagayan Protected Landscape and Seascape
Philippines Northern Sierra Madre Natural Park
Philippines Pasonanca Natural Park
Philippines Peñablanca Protected Landscape and Seascape
Philippines Tawi-tawi Island
Philippines University of the Philippines Land Grants (Pakil and Real)

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) major resident
Altitude 0 - 750 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Scale Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Future Minority (<50%) Rapid Declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2019) Species factsheet: Hypothymis coelestis. Downloaded from http://www.birdlife.org on 26/05/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 26/05/2019.