LC
Layard's Warbler Sylvia layardi



Taxonomy

Taxonomic note

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
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type Average mass 14.30000019 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,440,000 medium
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 - - -

Population justification: The global population size has not been quantified, but the species is described as locally fairly common to 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
Lesotho N Extant Yes
Namibia N Extant Yes
South Africa N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Lesotho Liqobong
Lesotho Mafika - Lisiu
Lesotho Sehlabathebe National Park
Lesotho Sehonghong and Matebeng
Lesotho Upper Quthing Valley
Lesotho Upper Senqu River
Namibia Brandberg mountain
Namibia Hobatere
Namibia Namib-Naukluft Park
Namibia Sperrgebiet
South Africa Anysberg Nature Reserve
South Africa Augrabies Falls National Park
South Africa Camdeboo National Park
South Africa Cedarberg - Koue Bokkeveld complex
South Africa Haramoep and Black Mountain Mine
South Africa Karoo National Park
South Africa Kouga - Baviaanskloof Complex
South Africa Langeberg Mountains
South Africa Maloti Drakensberg Park
South Africa Mattheus-Gat Conservation Area
South Africa Olifants river estuary
South Africa Platberg-Karoo Conservancy
South Africa Swartberg mountains
South Africa Verlorenvlei Estuary
South Africa West Coast National Park and Saldanha Bay islands

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Shrubland Mediterranean-type Shrubby Vegetation suitable resident
Shrubland Subtropical/Tropical Dry major resident
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation

Recommended citation
BirdLife International (2017) Species factsheet: Sylvia layardi. Downloaded from http://www.birdlife.org on 21/11/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/11/2017.