Data Zone
Justification of Red List category
Although this species is confined to only a single island, it is not believed to approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). In addition, the population trend is thought to be stable, hence the species does not meet or approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For this reason, the species is classified as Least Concern.
Population justification
The global population size of this species has not been quantified, although it has generally been found to be relatively scarce (though widespread) on bird surveys across Java (e.g. Squires et al. 2021, Marsden et al. 2023) and on citizen science datasets (e.g. eBird 2023, and Burungnesia [P. G. Akbar in litt. 2024]).
Trend justification
Forest cover within this species' range has remained relatively stable over the past 20 years (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein) with no indications that habitat has been lost at a scale capable of driving declines. In the absence of other threats, the population is suspected to be stable.
Eurylaimus javanicus is endemic to the island of Java, Indonesia.
Prefers swamp forest, evergreen and mixed deciduous forest near rivers and streams, but also occurs in a variety of other forest types including logged forest. Also encountered at forest edges, on plantations, in gardens and parks, and around villages. Feeds predominantly on insects but also recorded eating figs. Builds a large nest suspended from a tree branch (del Hoyo et al. 2003).
Historically this species suffered considerable losses in response to forest loss in Java's lowlands. However, more recently forest loss has been minimal (Global Forest Watch 2023) and this is no longer considered an acting threat. Domestic (Indonesian) trade for the cagebird market does occasionally involve individuals of this species.
Conservation Actions Underway
The species occurs in several protected areas.
Conservation Actions Proposed
Obtain a population estimate for the species. Prevent forest clearance within protected areas.
21-23 cm. Large and distinctive broadbill with purple, yellow and black plumage.
Text account compilers
Martin, R., Khwaja, N., Butchart, S., Ekstrom, J., Westrip, J.R.S., Berryman, A.
Contributors
Akbar, P.
Recommended citation
BirdLife International (2024) Species factsheet: Javan Broadbill Eurylaimus javanicus. Downloaded from
https://datazone.birdlife.org/species/factsheet/javan-broadbill-eurylaimus-javanicus on 20/12/2024.
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 20/12/2024.