LC
Fork-tailed Flycatcher Tyrannus savana



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/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass 31.89999962 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 21,100,000 medium
Extent of Occurrence non-breeding (km2) 16,500,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
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 - - -
Largest subpopulations - - -
Generation length (yrs) 4.2 - - -

Population justification: Partners in Flight estimate the total population to number 5,000,000-50,000,000 individuals (A. Panjabi in litt. 2008).

Trend justification: This species's population is suspected to be stable owing to its nomadic nature and ability to thrive in a wide range of open habitats (del Hoyo et al. 2004).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Antigua and Barbuda V Extant
Argentina N Extant
Aruba (to Netherlands) N Extant
Barbados V Extant
Belize N Extant
Bermuda (to UK) V Extant
Bolivia N Extant
Bonaire, Sint Eustatius and Saba (to Netherlands) N Extant
Brazil N Extant
Canada V Extant
Cayman Islands (to UK) V Extant
Chile N Extant
Colombia N Extant
Costa Rica N Extant
Cuba V Extant
Curaçao (to Netherlands) N Extant
Dominica V Extant
Ecuador N Extant
Falkland Islands (Malvinas) V Extant
French Guiana N Extant
Grenada V Extant
Guatemala N Extant
Guyana N Extant
Honduras N Extant
Jamaica V Extant
Martinique (to France) V Extant
Mexico N Extant
Montserrat (to UK) V Extant
Nicaragua N Extant
Panama N Extant
Paraguay N Extant
Peru N Extant
Sint Maarten (to Netherlands) N Extant
St Kitts and Nevis V Extant
St Lucia V Extant
St Martin (to France) V Extant Yes
St Pierre and Miquelon (to France) V Extant
St Vincent and the Grenadines V Extant
Suriname N Extant
Trinidad and Tobago N Extant
Uruguay N Extant Yes
USA V Extant Yes
Venezuela N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable non-breeding
Artificial/Terrestrial Pastureland suitable breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable non-breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable breeding
Artificial/Terrestrial Urban Areas suitable breeding
Artificial/Terrestrial Urban Areas suitable non-breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Lowland suitable breeding
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Forest Subtropical/Tropical Moist Montane suitable breeding
Grassland Temperate suitable breeding
Savanna Dry major breeding
Savanna Dry major non-breeding
Shrubland Subtropical/Tropical Moist major non-breeding
Shrubland Subtropical/Tropical Moist major breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Wetlands (inland) Shrub Dominated Wetlands suitable breeding
Wetlands (inland) Shrub Dominated Wetlands suitable non-breeding
Altitude 0 - 4100 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2019) Species factsheet: Tyrannus savana. Downloaded from http://www.birdlife.org on 19/07/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/07/2019.