NT
Rufous-sided Pygmy-tyrant Euscarthmus rufomarginatus



Taxonomy

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.
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
2016 Near Threatened A2c+3c+4c
2012 Near Threatened A2c+3c+4c
2008 Near Threatened A2c; A3c; A4c
2004 Near Threatened
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 5,320,000 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 Decreasing poor 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) 20-29 - - -
Decline (10 years/3 generation past and future) 20-29 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 3.6 - - -

Population justification: The global population size has not been quantified, but this species is described as rare and patchily distributed. However, in January and February 2008 it was the most common flycatcher in campo sujo and cerrado ralo at Serra Geral do Tocantins Ecological Station, central Brazil.

Trend justification: A moderately rapid and on-going population decline is suspected owing to habitat loss and degradation.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bolivia N Extant Yes
Brazil N Extant Yes
Paraguay N Extant Yes
Suriname N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bolivia Cerrado de Riberalta
Bolivia Noel Kempff Mercado
Bolivia Cercanías de Riberalta
Brazil Nascentes do Rio Parnaíba
Brazil Savanas do Amapá
Brazil Campo do Alto Marmelos
Brazil Parque Nacional de Brasília
Brazil Parque Nacional das Emas
Brazil Parque Nacional da Chapada dos Guimarães e Adjacências
Brazil Estação Ecológica Serra das Araras
Brazil Jalapão
Brazil Chapada do Catuni
Brazil Parque Nacional da Chapada Diamantina
Suriname Sipaliwini Nature Reserve
Brazil Savanas do Alto Paru
Brazil Lizarda
Brazil Monumento Natural das Árvores Fossilizadas e Adjacências
Brazil Cerrados do Nordeste de Tocantins

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subtropical/Tropical Dry major resident
Savanna Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 1000 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 Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Agro-industry plantations Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2020) Species factsheet: Euscarthmus rufomarginatus. Downloaded from http://www.birdlife.org on 21/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/09/2020.