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Catharus ustulatus 

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 Turdidae

Scientific Name: Catharus ustulatus (Nuttall, 1840)
Common Name(s):
English Russet-backed Thrush
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): Butchart, S., Ekstrom, J. & Khwaja, N.
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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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.

Geographic Range [top]

Countries occurrence:
Native:
Belize; Canada; Costa Rica; El Salvador; Guatemala; Honduras; Mexico; Nicaragua; Panama; United States
Vagrant:
Russian Federation (Eastern Asian Russia)
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:1450000
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):3000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Current Population Trend:Unknown
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 -> 1.1. Forest - Boreal
suitability:Suitable season:breeding major importance:No
1. Forest -> 1.4. Forest - Temperate
suitability:Suitable season:breeding major importance:No
1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable season:non-breeding major importance:No
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability:Suitable season:non-breeding major importance:No
3. Shrubland -> 3.6. Shrubland - Subtropical/Tropical Moist
suitability:Suitable season:non-breeding major importance:No
3. Shrubland -> 3.8. Shrubland - Mediterranean-type Shrubby Vegetation
suitability:Suitable season:breeding major importance:No
4. Grassland -> 4.5. Grassland - Subtropical/Tropical Dry
suitability:Suitable season:passage major importance:No
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
suitability:Suitable season:non-breeding major importance:No
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability:Suitable season:breeding major importance:No
14. Artificial/Terrestrial -> 14.2. Artificial/Terrestrial - Pastureland
suitability:Marginal season:non-breeding 
14. Artificial/Terrestrial -> 14.3. Artificial/Terrestrial - Plantations
suitability:Suitable season:breeding major importance:No
14. Artificial/Terrestrial -> 14.4. Artificial/Terrestrial - Rural Gardens
suitability:Suitable season:non-breeding major importance:No
14. Artificial/Terrestrial -> 14.5. Artificial/Terrestrial - Urban Areas
suitability:Suitable season:passage 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:Yes
  Subject to any international management/trade controls:No

Bibliography [top]

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

Macmynowski, D. P.; Root, T. L.; Ballard, G.; Geupel, G. R. 2007. Changes in spring arrival of Nearctic-Neotropical migrants attributed to multiscalar climate. Global Change Biology 13: 2239-2251.

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. Catharus ustulatus. The IUCN Red List of Threatened Species 2016: e.T103881682A94170877. . Downloaded on 20 May 2018.
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