Cacomantis aeruginosus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Cacomantis aeruginosus
Species Authority: Salvadori, 1878
Common Name(s):
English Moluccan Cuckoo
Cuculus heinrichi heinrichi Collar and Andrew (1988)
Taxonomic Notes: Cacomantis aeruginosus (del Hoyo and Collar 2014) was previously listed as C. heinrichi; the name aeruginosus has priority.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2014
Date Assessed: 2012-06-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S.
Facilitator/Compiler(s): Benstead, P., Bird, J., Taylor, J. & Symes, A.
This species is listed as Near Threatened because it is thought to have a moderately small population, which may be experiencing a continuing decline owing to forest loss. However, little is currently known about the population size and structure of, and threats to, this species. Further information may indicate that its classification needs revision.

2012 Near Threatened

Geographic Range [top]

Range Description: Cacomantis aeruginosus is restricted to the Northern Maluku Endemic Bird Area, Indonesia, where it occurs on Halmahera and Bacan (BirdLife International 2001). 

Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species has a relatively small range, within which forest habitats have declined and hence, the global population is suspected to be moderately small. It is placed in the band 10,000-19,999 individuals, equating to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It inhabits montane forest at 1,000-1,500 m on Halmahera, but occurs lower (800-1,200 m) on Bacan with recent reports from as low as 100-450 m. No information is known about breeding and foraging behaviour.

Systems: Terrestrial

Threats [top]

Major Threat(s): It may be vulnerable to forest loss within its range owing to the expansion of small-holder farming and subsistence logging.

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
None are known.

Conservation Actions Proposed
Survey for this species and calculate density estimates in order to revise its global population estimate. Assess its dependence on forest. Calculate rates of forest loss using remote sensing of satellite images. Protect areas of suitable habitat and safeguard against encroachment and degradation.

Citation: BirdLife International 2014. Cacomantis aeruginosus. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 04 September 2015.
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