LC
Grey Wren-warbler Calamonastes simplex



Taxonomy

Taxonomic note
Calamonastes simplex (del Hoyo and Collar 2016) was previously listed as Camaroptera simplex.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 2,210,000
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.3 - - -

Population justification: The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 2006).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Djibouti N Extant Yes
Ethiopia N Extant Yes
Kenya N Extant Yes
Somalia N Extant Yes
South Sudan N Extant Yes
Sudan N Extant Yes
Tanzania N Extant Yes
Uganda N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Ethiopia Arero forest
Ethiopia Awash National Park
Ethiopia Dawa - Wachile
Ethiopia Eastern Hararghe (Harar-Wabi Shebelle)
Ethiopia Lake Chew Bahir
Ethiopia Lower Wabi Shebelle river and Warder
Ethiopia Mankubsa - Welenso forest
Ethiopia Nechisar National Park and surroundings
Ethiopia Omo National Park
Ethiopia Sof Omar
Ethiopia Yabello Sanctuary
Kenya Amboseli National Park
Kenya Dida Galgalu desert
Kenya Lake Baringo
Kenya Lake Bogoria National Reserve
Kenya Lake Magadi
Kenya Lake Nakuru National Park
Kenya Lake Turkana
Kenya Lower Tana River Forests
Kenya Machakos valleys
Kenya Masai Mara
Kenya Meru National Park
Kenya Samburu and Buffalo Springs National Reserves
Kenya Shaba National Reserve
Kenya South Nguruman
Kenya Tsavo East National Park
Kenya Tsavo West National Park
Somalia Arbowerow
Somalia Balcad Nature Reserve
Somalia Buulobarde
Somalia Daalo
Somalia Gacan Libaax
Somalia Jasiira lagoon and Muqdisho islets
Somalia Jowhar - Warshiikh
Somalia Laag Badaana
Somalia Lascaanod - Taleex - Ceel Chebet
Somalia Saylac
Somalia War Harqaan - isha Dolondole
Somalia Xawaadley reservoir
South Sudan Bandingilo
South Sudan Kidepo
Tanzania Katavi National Park
Tanzania Lake Manyara
Tanzania Lake Natron and Engaruka basin
Tanzania Longido Game Controlled Area
Tanzania Mkomazi Game Reserve
Tanzania Nyumba ya Mungu reservoir
Tanzania Ruaha National Park
Tanzania Serengeti National Park
Tanzania Tarangire National Park
Tanzania Usangu flats
Tanzania Wembere steppe
Uganda Kasyoha-Kitomi Forest Reserve
Uganda Kidepo Valley National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 1500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Calamonastes simplex. Downloaded from http://www.birdlife.org on 06/12/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/12/2019.