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Thryomanes bewickii 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_onStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Troglodytidae

Scientific Name: Thryomanes bewickii (Audubon, 1827)
Common Name(s):
English Bewick's Wren
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.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Ekstrom, J., Butchart, S.
Justification:
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Thryomanes bewickii is a North American species, whose main range spreads from south-west Canada through western and central U.S.A. to Mexico (del Hoyo et al. 2005) . The subspecies brevicaudus and leucophrys, of Guadalupe Island (Mexico), and San Clemente Island (U.S.A.), respectively, are both now extinct (Anthony 1901, del Hoyo et al. 2005).
Countries occurrence:
Native:
Canada; Mexico; United States
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:6290000
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:No
Upper elevation limit (metres):2900
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Stable
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Classifications [top]

1. Forest -> 1.4. Forest - Temperate
suitability:Suitable season:breeding major importance:No
1. Forest -> 1.4. Forest - Temperate
suitability:Suitable season:non-breeding major importance:No
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability:Suitable season:breeding major importance:No
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability:Suitable season:non-breeding major importance:No
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable season:breeding major importance:No
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable season:non-breeding major importance:No
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability:Suitable season:breeding major importance:Yes
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability:Suitable season:non-breeding major importance:Yes
3. Shrubland -> 3.6. Shrubland - Subtropical/Tropical Moist
suitability:Suitable season:breeding major importance:No
3. Shrubland -> 3.6. Shrubland - Subtropical/Tropical Moist
suitability:Suitable season:non-breeding major importance:No
3. Shrubland -> 3.7. Shrubland - Subtropical/Tropical High Altitude
suitability:Suitable season:breeding major importance:No
3. Shrubland -> 3.7. Shrubland - Subtropical/Tropical High Altitude
suitability:Suitable season:non-breeding major importance:No
14. Artificial/Terrestrial -> 14.5. Artificial/Terrestrial - Urban Areas
suitability:Suitable season:breeding major importance:No
14. Artificial/Terrestrial -> 14.5. Artificial/Terrestrial - Urban Areas
suitability:Suitable season:non-breeding major importance:No

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:Yes
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
  Invasive species control or prevention:No
In-Place Species Management
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  Subject to recent education and awareness programmes:No
  Included in international legislation:No
  Subject to any international management/trade controls:No

Bibliography [top]

Anthony, A. W. 1901. The Guadalupe wren. Condor 3: 73.

del Hoyo, J.; Elliott, A.; Christie, D. 2005. Handbook of the Birds of the World, vol. 10: Cuckoo-shrikes to Thrushes. Lynx Edicions, Barcelona, Spain.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: www.iucnredlist.org. (Accessed: 07 December 2016).

Rich, T.D., Beardmore, C.J., Berlanga, H., Blancher, P.J., Bradstreet, M.S.W., Butcher, G.S., Demarest, D.W., Dunn, E.H., Hunter, W.C., Inigo-Elias, E.E., Martell, A.M., Panjabi, A.O., Pashley, D.N., Rosenberg, K.V., Rustay, C.M., Wendt, J.S. and Will, T.C. 2004. Partners in flight: North American landbird conservation plan. Cornell Lab of Ornithology, Ithaca, NY.


Citation: BirdLife International. 2016. Thryomanes bewickii. The IUCN Red List of Threatened Species 2016: e.T22711377A94291604. . Downloaded on 15 December 2017.
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