Data Zone
Taxonomic source(s)
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | D1 |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Vulnerable | D1 |
| 2012 | Vulnerable | D1 |
| 2008 | Vulnerable | C2a(i); D1 |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 172,000 km2 | medium |
| Number of locations | 11-100 | - |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 250-999 mature individuals | medium | estimated | 2000 |
| Population trend | decreasing | poor | suspected | 1998-2008 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
| Generation length | 17.1 years | - | - | - |
| Number of subpopulations | 2-100 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 1-94% | - | - | - |
Population justification: The population is estimated to number 250-999 mature individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 375-1,499 individuals in total, rounded here to 350-1,500 individuals.
Trend justification: A moderate and on-going population decline is suspected on the basis of rates of habitat destruction and persecution.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Papua New Guinea | extant | native | yes | |||
| Solomon Islands | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Solomon Islands | Gizo |
| Solomon Islands | East Makira |
| Solomon Islands | Kolombangara Upland Forest |
| Solomon Islands | Mount Maetambe - Kolombangara River |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Marine Intertidal | Rocky Shoreline | suitable | resident |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | suitable | resident |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | resident |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | resident |
| Altitude | 0 - 1500 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Fishing & harvesting aquatic resources - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Hunting & trapping terrestrial animals - Persecution/control | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
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| Pollution | Agricultural & forestry effluents - Herbicides and pesticides | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Unknown | Unknown | ||||||
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Recommended citation
BirdLife International (2023) Species factsheet: Haliaeetus sanfordi. Downloaded from
http://datazone.birdlife.org/species/factsheet/sanfords-sea-eagle-haliaeetus-sanfordi on 29/11/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 29/11/2023.
