Taxonomic note
Syndactyla ucayalae (del Hoyo and Collar 2016) was previously listed as Simoxenops ucayalae.
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 | Near Threatened | C2a(i) |
2013 | Near Threatened | C2a(i) |
2012 | Near Threatened | C2a(i) |
2008 | Near Threatened | C2a(i) |
2004 | Near Threatened | |
2000 | Lower Risk/Near Threatened | |
1994 | Lower Risk/Near Threatened | |
1988 | Near Threatened |
Migratory status | not a migrant | Forest dependency | high |
Land-mass type |
continent |
Average mass | 50 g |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 1,660,000 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | unknown | - | - | - |
Population trend | decreasing | poor | suspected | 1998-2008 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-25% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
Generation length | 3.8 years | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The global population size has not been quantified, but this species is described as 'uncommon'. A tentative population estimate of c.2,000 pairs has been suggested for Peru.
Trend justification: This species is suspected to lose 12.1-13.3% of suitable habitat within its distribution over three generations (11 years) based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). Given the susceptibility of the species to fragmentation and/or edge effects, it is therefore suspected to decline by <25% over three generations.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Bolivia | extant | native | yes | |||
Brazil | extant | native | yes | |||
Peru | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Bolivia | Reserva Nacional Amazónica Manuripi Heath |
Bolivia | Tahuamanu |
Peru | Cordillera Vilcabamba |
Peru | Los Amigos |
Peru | Manu |
Peru | Alto Purus |
Brazil | Serra dos Carajás |
Brazil | Alto Juruá |
Brazil | Tabocais |
Brazil | Baixo Rio Xingu |
Peru | Tambopata |
Peru | Bahuaja-Sonene |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | resident |
Altitude | 0 - 1300 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
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Energy production & mining | Oil & gas drilling | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
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Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Residential & commercial development | Tourism & recreation areas | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Syndactyla ucayalae. Downloaded from
https://datazone.birdlife.org/species/factsheet/peruvian-recurvebill-syndactyla-ucayalae on 19/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org on 19/03/2024.