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Least Poorwill Siphonorhis brewsteri

IUCN Red List Criteria

Near Threatened (criteria nearly met) C2a(i) 

IUCN Red List history

Year Category
2012 Near Threatened
2008 Near Threatened
2007 Near Threatened
2004 Data Deficient
2000 Data Deficient
1994 Lower Risk/Near Threatened
1988 Near Threatened

Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 18,700 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 6000-15000 poor Suspected 2007
Population trend Decreasing poor -
Number of subpopulations 1 - - -
Largest subpopulation - - -
Generation length (yrs) 5.4 - - -
Population justification: This species is suspected to have a moderately small population based upon its apparent rarity and the limited availability of suitable habitat. It is placed in the band 10,000-19,999 individuals, equating to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals.
Trend justification: The species is suspected to be declining at a slow to moderate rate across much of its range, owing to habitat destruction (S. Latta in litt. 2006).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Dominican Republic Native Extant       Yes
Haiti Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Dominican Republic Armando Bermudez National Park site factsheet
Dominican Republic Cabral Lagoon site factsheet
Dominican Republic Del Este National Park site factsheet
Dominican Republic Eastern Bahoruco site factsheet
Dominican Republic Enriquillo Lake site factsheet
Dominican Republic Haitises site factsheet
Dominican Republic Jaragua National Park site factsheet
Dominican Republic Sierra de Bahoruco site factsheet
Dominican Republic Sierra de Neyba site factsheet
Dominican Republic Sierra Martin Garcia site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Shrubland Subtropical/Tropical Dry major resident
Altitude 0 - 900 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Siphonorhis brewsteri. Downloaded from http://www.birdlife.org on 23/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/09/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Caprimulgidae (Nightjars)
Species name author (Chapman, 1917)
Population size 6000-15000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 18,700 km2
Country endemic? No
Links to further information
- Summary information on this species