This species is classified as Vulnerable on account of its very small range. Although it is apparently currently secure, it is inherently at risk, especially from any loss of its very restricted habitat.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
12 cm. Small, all-brown, warbler-like bird. Darker brown upperparts and head, paler on belly with greyish throat. Greyish-blue bill and legs. Voice Long, trilling trrrrrrrruuuuu or rapid tric tric tric.
2011. Bioko Biodiversity Protection Program. Bioko Biodiversity Protection Program: http://www.bioko.org/index.php.
Collar, N. J.; Stuart, S. N. 1985. Threatened birds of Africa and related islands: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, and International Union for Conservation of Nature and Natural Resources, Cambridge, U.K.
Pérez del Val, J. 1996. Las aves de Bioko, Guinea Ecuatorial: guía de campo. Edilesa, Leon.
Further web sources of information
View photos and videos, and hear sounds of this species from the Internet Bird Collection
Text account compilers
Ekstrom, J., Pilgrim, J., Shutes, S., Symes, A., Taylor, J.
IUCN Red List evaluators
Butchart, S., Taylor, J.
BirdLife International (2013) Species factsheet: Speirops brunneus. Downloaded from http://www.birdlife.org on 13/12/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 13/12/2013.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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|Current IUCN Red List category||Vulnerable|
|Species name author||Salvadori, 1903|
|Population size||6000-15000 mature individuals|
|Distribution size (breeding/resident)||60 km2|
|Links to further information|
|- Additional Information on this species|