Javan Woodcock

The Javan woodcock is a small, dark bird with a long bill, resembling the widespread Eurasian woodcock but significantly smaller, and with darker plumage. Its chin is pale brown, its breast and belly are mottled in dusky brown with a white band in between. There is no record of any differences of plumage between seasons, sex, or age of the Javan woodcock, although research does not show whether such variations exist.

Vocal behaviour. There is much ambiguity surrounding reports of the call patterns and behaviour. Some observers have reported its calling whilst in flight, whereas others have reported calling only when on its display perch. Different researchers have also reported slightly different call patterns.

The Javan woodcock is endemic to the Indonesian islands of Sumatra and Java, where it inhabits moist montane forests at an elevation range of 1,500–3,000 m (4,900–9,800 ft). During surveys in Java from 2018 to 2020, it was recorded at four sites and three mountains, with an encounter rate of 0.33 groups per hour. Its estimated extent of occurrence is 305,000 km2 (118,000 sq mi). Some records of the Javan woodcock are also known in swampy montane forests with bracken and moss vegetation. The Javan woodcock population is thought to be decreasing, with an estimated 2,500 to 9,999 mature individuals in 10 to 50 subpopulations and at most 1,000 individuals per subpopulation.

The Javan woodcock forages in dense vegetation, and its diet consists primarily of insects including grasshoppers, earwigs, larvae, caterpillars and moth pupae, spiders, centipedes and worms.