Data Zone
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#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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 |
| Migratory status | full migrant | Forest dependency | Low |
| Land mass type | Average mass | 32 g |
| 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 | - |
| 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 | 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 |
| Country/Territory | IBA Name |
|---|
| 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 (2020) Species factsheet: Tyrannus savana. Downloaded from
http://www.birdlife.org on 28/01/2020.
Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 28/01/2020.
