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Javan Leafbird Chloropsis cochinchinensis



Justification

Justification of Red List Category
This species is believed to be undergoing a moderately rapid population decline due to trapping for the cage bird trade.

Population justification
The population size is unknown, but the species has been considered rare for some time (Wells 2016). Recent records come from at least six sites with the potential to hold sustainable populations spread throughout Java (eBird 2016), however the species is now only infrequently observed at many sites where it was easy to see in the recent past (Eaton in litt. 2016).

Trend justification
The population is suspected to be undergoing a moderately rapid decline owing to capture for the cage bird trade, which may be exacerbated by past habitat loss in the lower elevation areas of the range.

Distribution and population

This species is endemic to the island of Java, Indonesia. It occurs in a number of protected areas.

Ecology

This species favours humid forest edge and secondary growth, and is also found in evergreen and semi-evergreen lowland forest, peatswamp-forest, well-grown secondary forest and nearby mixed orchards, from the lowland plains to 1,800 m (Wells 2005, 2016).

Threats

Leafbirds have been a moderately popular cage bird for many years, but recently Greater Green Leafbird has become exceptionally sought after prompting other Chlorpsis species to be traded in increasing numbers (Chng et al. 2015, Eaton et al. 2015, Bas van Balen in litt. 2016). Javan Leafbird, as a primarily lowland species is potentially at high risk from severe overexploitation in the future as almost the entire range is accessible to trappers: most lowland forest was cleared many decades ago. Should the supply of Greater Green Leafbirds become severely reduced, as seems likely, the demand may switch to other species and Javan may see a sudden, further increase in trapping pressure (Bas van Balen in litt. 2016).

Conservation actions

Robust investigations of the current population densities at sites where previous surveys were carried out in the late 20th century are needed to quantify the rate of decline and provide a baseline for future monitoring. Enforcement of the laws regarding trading in wild-caught birds is of utmost importance for the entire set of species that are supplied to the trade from the wild.

Identification

c. 17cm. A medium-sized green leafbird with a subtle turquoise wing panel. The male has a restricted black mask extending to the throat and bordered by a smudge of golden yellow except on the crown, and an intense deep blue jawline flash. The female lacks the mask and the yellowish suffusion is restricted to the underparts.

Acknowledgements

Text account compilers
Butchart, S., Martin, R & Temple, H.

Contributors
Chng, S., Eaton, J. & van Balen, B.


Recommended citation
BirdLife International (2019) Species factsheet: Chloropsis cochinchinensis. Downloaded from http://www.birdlife.org on 25/03/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/03/2019.