VU
Pampas Meadowlark Leistes defilippii



Taxonomy

Taxonomic note
Leistes defilippii (del Hoyo and Collar 2016) was previously placed in the genus Sturnella following SACC (2005 & updates); Sibley & Monroe (1990, 1993); Stotz et al. (1996).

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
- - A2ce+3ce+4ce; B1ab(i,ii,iii,iv,v)

Red List history
Year Category Criteria
2016 Vulnerable A2ce+3ce+4ce;B1ab(i,ii,iii,iv,v)
2012 Vulnerable A2ce+3ce+4ce;B1ab(i,ii,iii,iv,v)
2008 Vulnerable B1a+b(i,ii,iii,v)
2007 Vulnerable
2004 Vulnerable
2000 Vulnerable
1994 Endangered
1988 Threatened
Species attributes

Migratory status full 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) 5,200 medium
Extent of Occurrence non-breeding (km2) 555,000 medium
Number of locations 6-10 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals medium estimated 2008
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) 20-49 - - -
Decline (10 years/3 generation past and future) 20-49 - - -
Number of subpopulations 2 - - -
Largest subpopulations - - -
Generation length (yrs) 4.3 - - -

Population justification: The population is estimated to number over 28,000 individuals, based on recent estimates from studies in Argentina and Uruguay, the only known breeding areas.

Trend justification: Repeat surveys have used different methodologies, so accurate trends cannot be estimated. However, the Extent of Occurrence is thought to have declined by 30% owing to habitat conversion between 1992 and 1999, suggesting that populations could be declining at a moderately rapid to rapid rate.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes
Brazil N Extant Yes
Uruguay N Extant Yes Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Caldenal del Sudoeste de Buenos Aires
Argentina Lagunas Encadenadas del Oeste de la Provincia de Buenos Aires
Argentina Pastizales de La Travesía y Buena Esperanza
Argentina Reserva de Uso Múltiple San Blas y Refugio de Vida silvestre Complementario
Argentina Villa Iris, Chasicó, Napostá
Argentina Villa marítima El Cóndor
Argentina Vuelta de Obligado
Uruguay El Tapado Grasslands

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Temperate major breeding
Grassland Temperate major non-breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching Timing Scope Severity Impact
Ongoing Whole (>90%) Slow, Significant Declines Medium Impact: 7
Stresses
Ecosystem degradation, Ecosystem conversion, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Negligible declines Medium Impact: 6
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Negligible declines Medium Impact: 6
Stresses
Competition, Reduced reproductive success
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Whole (>90%) Negligible declines Medium Impact: 6
Stresses
Competition, Reduced reproductive success

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Leistes defilippii. Downloaded from http://www.birdlife.org on 23/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2017.