Everett's Thrush Zoothera everetti


Justification of Red List Category
This species is listed as Near Threatened because there are some indications that it is thought to have a moderately small, fragmented population, and is undergoing a continuing decline owing to forest loss; it almost meets the requirements for listing as threatened under criterion C2a(ii). However, little is currently known about the population size of and threats to this species. Further information may indicate it is more threatened.

Population justification
This species appears to be genuinely rare within a restricted range. Hence, its population is provisionally estimated to number c. 10,000-19,999 individuals, but density estimates are needed to inform a more accurate global population estimate. This estimate equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.

Trend justification
This species is thought to be declining owing to loss and degradation of forest habitats within its range, particularly at the lower limit of its altitudinal distribution. The rate of decline has not been estimated.

Distribution and population

This species is restricted to Borneo, where it is endemic to Sabah and Sarawak, Malaysia. It inhabits submontane forest on Mt Kinabalu, Mt Murud, Mt Mulu, Mt Dulit, Mt Trus Madi and the Kelabit uplands, where, despite its highly secretive nature, it may be genuinely rare and declining in some areas with loss of forest at lower altitudes.


This extremely secretive species inhabits undergrowth and lower levels of trees and vegetation in submontane deciduous forest at 1,200-2,300 m. It forages on invertebrates on the ground, particularly in moist patches and along the edges of streams. A nest has been found in May under dense undergrowth.


This species may be suffering from forest loss owing to agricultural encroachment, subsistence logging and forest fires at lower elevations within its restricted range.

Conservation actions

Conservation and Research Actions Underway
It is protected in Sabah under the Wildlife Conservation Enactment.

Conservation and Research Actions Proposed
Protect areas of lowland forest within the species's range. Enforce restrictions on hunting and logging within such protected areas. Determine its habitat association and generate density estimates to inform a revised population estimate for the species.


Text account compilers
Benstead, P., Bird, J., Khwaja, N. & Ashpole, J

Recommended citation
BirdLife International (2023) Species factsheet: Zoothera everetti. Downloaded from http://www.birdlife.org on 30/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 30/03/2023.