NT
Pale-browed Tinamou Crypturellus transfasciatus



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

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

Red List history
Year Category Criteria
2020 Near Threatened A2cd+3cd+4cd
2016 Near Threatened A2cd+3cd+4cd
2012 Near Threatened A2cd+3cd+4cd
2008 Near Threatened A2c,d; A3c,d; A4c,d
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Land-mass type - continent
Average mass 283 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 99,200 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 Decreasing poor inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 10-29 - - -
Decline (10 years/3 generation past and future) 10-29 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations 1-89 - - -
Generation length (yrs) 5 - - -

Population justification: The global population size has not been quantified, but the species is described as 'fairly common' (Stotz et al. 1996).

Trend justification: The species is thought to be undergoing a decline owing to hunting and the loss and degradation of its habitat. Tree cover loss within the range has not exceeded 10% over the last three generations (15 years; Tracewski et al. 2016, Global Forest Watch 2020). Nevertheless, despite its tolerance of low levels of habitat conversion, the species also suffers from the degradation of the understory through cattle grazing, and it is susceptible to hunting (Gomes and Kirwan 2020). Therefore, the overall rate of decline is tentatively placed in the band 10-29% over three generations.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Ecuador N Extant Yes
Peru N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Ecuador Abras de Mantequilla
Ecuador Alamor-Celica
Ecuador Bosque Protector Cerro Blanco
Ecuador Bosque Protector Chongón-Colonche
Ecuador Bosque Protector Jatumpamba-Jorupe
Ecuador Bosque Protector Puyango
Ecuador Cañón del río Catamayo
Ecuador Cazaderos-Mangaurquillo
Ecuador Engunga
Ecuador Reserva Biológica Tito Santos
Ecuador Estación Científica Pedro Franco Dávila
Ecuador Hacienda Camarones
Ecuador Parque Nacional Machalilla y alrededores
Ecuador Reserva Ecológica Arenillas
Ecuador Reserva Ecológica Comunal Loma Alta
Ecuador Reserva Ecológica Manglares-Churute
Ecuador Reserva Natural Tumbesia-La Ceiba-Zapotillo
Ecuador Tambo Negro
Peru Cerro Chinguela
Peru Coto de Caza El Angolo
Peru Bosques Secos de Salitral - Huarmaca - Olmos
Peru Suyo-La Tina
Peru Zona Reservada de Tumbes
Peru Parque Nacional Cerros de Amotape
Ecuador Cordillera El Bálsamo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 1500 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Ecosystem degradation

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - Non-trivial Recent

Recommended citation
BirdLife International (2021) Species factsheet: Crypturellus transfasciatus. Downloaded from http://www.birdlife.org on 21/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/01/2021.