Taxonomic note
Hydrobates hornbyi (del Hoyo and Collar 2014) was previously placed in the genus Oceanodroma.
Taxonomic source(s)
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. 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 |
---|---|---|
2019 | Near Threatened | B2b(iii) |
2018 | Data Deficient | |
2016 | Data Deficient | |
2012 | Data Deficient | |
2010 | Data Deficient | |
2008 | Data Deficient | |
2004 | Data Deficient | |
2000 | Data Deficient | |
1996 | Data Deficient | |
1994 | Data Deficient | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | Does not normally occur in forest |
Land mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 2,560,000 | medium |
Extent of Occurrence breeding/resident (km2) | 2,000 | |
Number of locations | - | |
Fragmentation | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 500000-800000 | medium | estimated | 2007 |
Population trend | Decreasing | 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) | 16 | - | - | - |
Population justification: Brooke (2004) suspected the global population to number at least thousands of individuals, and probably tens of thousands. Marine surveys in the 1980s-1990s led to an estimated abundance of 637,200 in spring (95% CI: 0.5-0.8 million) and 1,011,900 in autumn (95% CI: 900,000-1,500,000) (Spear and Ainley 2007). Assuming the lower population estimates in spring represent mature individuals, we can derive from these surveys a population estimate of 500,000-800,000 mature individuals. The subpopulation structure is not known.
Trend justification: The species may be declining as a result of threats, including light pollution, but we have no data from which to quantify population trends.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Chile | N | Extant | Yes | |||
Ecuador | N | Extant | Yes | |||
Peru | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Peru | Reserva Nacional de Paracas |
Peru | Río Tambo y Lagunas de Mejía |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Desert | Cold | major | breeding |
Marine Neritic | Macroalgal/Kelp | suitable | resident |
Marine Neritic | Pelagic | major | resident |
Marine Neritic | Seagrass (Submerged) | suitable | resident |
Marine Neritic | Subtidal Loose Rock/pebble/gravel | suitable | resident |
Marine Neritic | Subtidal Rock and Rocky Reefs | suitable | resident |
Marine Neritic | Subtidal Sandy | suitable | resident |
Marine Neritic | Subtidal Sandy-Mud | suitable | resident |
Marine Oceanic | Epipelagic (0-200m) | major | resident |
Marine Oceanic | Mesopelagic (200-1000m) | major | resident |
Altitude | Occasional altitudinal limits | (max) 3400 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
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Energy production & mining | Renewable energy | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
|
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Pollution | Excess energy - Light pollution | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Unknown | Unknown | ||||||
|
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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
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Transportation & service corridors | Utility & service lines | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
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Recommended citation
BirdLife International (2021) Species factsheet: Hydrobates hornbyi. Downloaded from
http://www.birdlife.org on 26/01/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 26/01/2021.