NT
Manus Dwarf-kingfisher Ceyx dispar



Justification

Justification of Red List Category
This newly-split species has precautionarily been listed as Near Threatened as it may have a moderately small population, consisting of a single subpopulation, which is inferred to be undergoing a slow, continuing decline owing to habitat loss and degradation. Clarification of its population size and tolerance for degraded and fragmented habitats may result in a reclassification of its status.

Population justification
The population size has not been estimated following recent taxonomic splits, but the species occurs at low densities (G. Dutson in litt. 2012) and the overall population is presumed to be moderately small.

Trend justification
The population is suspected to be declining locally owing to ongoing habitat destruction (del Hoyo et al. 2001).

Distribution and population

Restricted to the island of Manus in the Admiralty Islands, north-west Bismark Archipelago, Papua New Guinea.

Ecology

Occurs in forested habitats, not necessarily near watercourses and may tolerate secondary forest and plantations as noted in other Ceyx.

Threats

On-going habitat loss and degradation is the principal threat to the species. In 1987, 80% of vegetation on Manus was estimated to be primary forest, but large areas of lowland Manus are now logged or under logging concessions and in coastal areas the forest is being eroded by shifting cultivation.

Conservation actions

Conservation Actions Underway
No targeted conservation actions are known for this species.

Conservation Actions Proposed
Conduct repeated surveys throughout the species's range to determine its current status and assess population trends. Conduct ecological studies to identify its precise habitat requirements and response to habitat degradation or fragmentation. Increase the area of suitable habitat that has protected status and safeguard against logging and agricultural encroachment.

Identification

14 cm. Small sexually dimorphic blue and orange kingfisher with a bright orange bill. The head of the male is largely royal blue, with a small white patch behind the ear coverts, orange lores and a white throat. In contrast the female has most of the head orange, with blue restricted to the rear crown, below the white spot behind the ear coverts and variably in the moustacial region. Both sexes have strong orange underparts and blue upperparts, with a paler, bright blue dorsal stripe. Similar species. Male is very similar to C. collectoris of New Georgia, but the latter is not sexually dimorphic. C. solitarius of New Guinea has an all dark bill, and C. sacerdotis of New Britain has a dark upper mandible.

Acknowledgements

Text account compilers
Butchart, S., Ekstrom, J., Symes, A. & Taylor, J.

Contributors
Dutson, G.


Recommended citation
BirdLife International (2022) Species factsheet: Ceyx dispar. Downloaded from http://www.birdlife.org on 22/05/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/05/2022.