LC
Shear-tailed Grey Tyrant Muscipipra vetula



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.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. 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 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Average mass 27 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,060,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value 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 - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 3.6 - - -

Population justification: The global population size has not been quantified, but this species is described as 'uncommon and patchily distributed' (Stotz et al. 1996).

Trend justification: This 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
Argentina N Extant Yes
Brazil N Extant Yes
Paraguay N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Paraguay Paso Curuzú
Paraguay Bosque Mbaracayú
Paraguay Refugio Carapá
Paraguay Reserva Itabó - Itaipú
Brazil Parque Estadual da Serra do Brigadeiro
Brazil Boa Nova / Serra da Ouricana
Brazil Santa Teresa
Brazil Fazenda Pindobas IV e Arredores
Brazil Complexo Pedra Azul / Forno Grande
Brazil Campos Gerais do Paraná
Brazil Serra do Marumbi
Brazil Serra da Mantiqueira
Brazil Área de Proteção Ambiental de Guaratuba
Brazil Parque Estadual da Serra do Mar (entre Caraguatatuba e Picinguaba)
Brazil Região de Blumenau
Brazil Parque Estadual da Serra do Mar (entre Santos e São Sebastião)
Brazil Serra do Tabuleiro State Park
Brazil Guaraqueçaba / Jacupiranga / Cananéia
Brazil Maciço Florestal de Paranapiacaba
Brazil Parque Nacional de Itatiaia
Brazil Região dos Aparados da Serra

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable non-breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Montane major breeding
Forest Subtropical/Tropical Moist Montane major non-breeding
Grassland Subtropical/Tropical High Altitude suitable breeding
Grassland Subtropical/Tropical High Altitude suitable non-breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable non-breeding
Altitude 0 - 2200 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Muscipipra vetula. Downloaded from http://www.birdlife.org on 05/07/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 05/07/2022.