NT
Solomons Frogmouth Rigidipenna inexpectata



Taxonomy

Taxonomic source(s)
Cleere, N.; Kratter, A. W.; Steadman, D. W.; Braun, M. J.; Huddleston, C. J.; Filardi, C. E.; Dutson, G. 2007. A new genus of frogmouth (Podargidae) from the Solomon Islands - results from a taxonomic review of Podargus ocellatus inexpectatus Hartert 1901. Ibis 149(2): 271-286.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions 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
2023 Near Threatened C2a(i)
2016 Near Threatened B1ab(ii,iii)
2012 Near Threatened B1ab(ii,iii)
2011 Near Threatened B1a+b(ii,iii)
2010 Least Concern
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) 57,300 km2 good
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 1500-7000 mature individuals poor suspected 2011
Population trend decreasing poor suspected 2016-2031
Rate of change over the past 10 years/3 generations (longer of the two periods) 1-9% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 1-9% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 1-9% - - -
Generation length 5.3 years - - -
Number of subpopulations 5-100 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The species' population size has not been formally estimated, but is described as uncommon (Dutson 2011). Given the paucity of records, a realistic preliminary estimate may be of 2,500-9,999 individuals (G . Dutson in litt. 2011). This equates to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals. Given the likely number of subpopulations and that the total population size may be as low as 1,500 mature individuals, no subpopulation is thought to exceed 1,000 mature individuals.

Trend justification: This species' population is suspected to be in slow decline owing to continued habitat loss and degradation; however, it has been recorded in secondary, degraded and otherwise altered habitats (G. Dutson in litt. 2011). Remote sensing data (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein) indicate that in the three generations to 2021 (15.9 years; Bird et al. 2020), forest loss in this species' range has been equivalent to c.5-7%, and this is thought to be continuing. The rate of decline is placed here in the range 1-9% in three generations.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Papua New Guinea extant native yes
Solomon Islands 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 resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Altitude 0 - 700 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
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
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Solomons Frogmouth Rigidipenna inexpectata. Downloaded from https://datazone.birdlife.org/species/factsheet/solomons-frogmouth-rigidipenna-inexpectata on 22/11/2024.
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 22/11/2024.