• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
This species has a small population and range, which are inferred to be declining as a result of habitat loss. However, the species is found in more than one subpopulation and the largest subpopulation likely contains >1,000 mature individuals; moreover, it is not confined to a small number of locations. For these reasons it is listed as Near Threatened.

Population justification
The densities of a similar-sized congener with a similar ecology (C. lemprieri) ranged 18-30 mature individuals/km² in different forest types. Consequently, given a total forest area of only 200 km² (and acknowledging that not all of this is likely to be occupied) in the range of C. djampeanus, the population is highly unlikely to exceed 10,000 mature individuals, and is therefore placed here in the band 2,500-9,999, although it may be substantially lower. Forest cover on Tanahjampea and Kalao is 110 km² and 90 km², with predicted population sizes of 1,980-3,300 and 1,620-2,700 mature individuals, respectively.

Trend justification
Forest loss on both islands has recently increased and is occurring at a rate of c.5-10% over 10 years (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). This species is dependent on forest and as such is suspected to be declining at a rate more or less equal to that of forest loss.

Cyornis djampeanus, Tanahjampea Blue-flycatcher, is found only the islands of Tanahjampea and Kalao, Indonesia.

Occurs in forest, forest edge and denser areas of scrub/bamboo (Eaton and Rheindt 2017).

The only known threat to this species is forest loss and degradation throughout its range.

Conservation Actions Underway
None known.

Conservation Actions Proposed
Conduct surveys to ascertain more accurate population size and trend estimates. Protect its remaining habitat.

Text account compilers
Westrip, J.R.S., Butchart, S., Berryman, A., Ekstrom, J.

Contributors
Eaton, J.

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Recommended citation
BirdLife International (2024) Species factsheet: Tanahjampea Blue Flycatcher Cyornis djampeanus. Downloaded from https://datazone.birdlife.org/species/factsheet/tanahjampea-blue-flycatcher-cyornis-djampeanus on 26/12/2024.
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 26/12/2024.