NT
Bicol Ground-warbler Robsonius sorsogonensis
BirdLife is reviewing the status of this species for the 2018 Red List.
Please click here to join the discussion



Family: Locustellidae (Grasshopper-warblers and grassbirds)

Authority: (Rand & Rabor, 1967)

Red List Category

Criteria: B1ab(ii,iii,v)

Click here for more information about the Red List categories and criteria

Justification of Red List category
This species is listed as Near Threatened. It has a small range, within which it is found at a relatively limited number of locations and its habitat is declining both in area and quality as a result of deforestation; hence it almost meets the requirements for listing as threatened under criterion B1ab(ii,iii,v). If new data shows that it is found at fewer than 10 locations it would warrant uplisting to Vulnerable.



Population size: unknown

Population trend: Decreasing

Extent of occurrence (breeding/resident): 5,228 km2

Country endemic: Yes

Attributes
Realm - Indomalayan
Land-mass type - shelf island
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2018) Species factsheet: Robsonius sorsogonensis. Downloaded from http://www.birdlife.org on 15/11/2018. Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/11/2018.