Data Zone
Taxonomic note
Sternula saundersi (del Hoyo and Collar 2014) was previously placed in the genus Sterna.
Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
Cramp, S. and Simmons, K.E.L. (eds). 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. 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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2018 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | full migrant | Forest dependency | does not normally occur in forest |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 11,700,000 | medium |
| Extent of Occurrence non-breeding (km2) | 17,800,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | poor | estimated | 2009 | |
| 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 | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 11 | - | - | - |
Trend justification: The population is suspected to be in decline owing to disturbance and predation at breeding sites (del Hoyo et al. 1996).
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bahrain | extant | native | yes | yes | ||
| Djibouti | extant | native | ||||
| Egypt | extant | uncertain | ||||
| Eritrea | extant | native | ||||
| India | extant | native | yes | |||
| Iran, Islamic Republic of | extant | native | yes | |||
| Iraq | extant | uncertain | ||||
| Israel | extant | vagrant | ||||
| Kenya | extant | native | ||||
| Kuwait | extant | native | yes | |||
| Madagascar | extant | native | ||||
| Maldives | extant | native | yes | |||
| Oman | extant | native | yes | yes | ||
| Pakistan | extant | native | yes | |||
| Qatar | extant | native | yes | |||
| Saudi Arabia | extant | native | yes | |||
| Seychelles | extant | native | yes | |||
| Somalia | extant | native | yes | |||
| Sri Lanka | extant | native | yes | |||
| Sudan | extant | native | yes | yes | ||
| Tanzania | extant | native | ||||
| United Arab Emirates | extant | native | yes | yes | ||
| Yemen | extant | native | yes | yes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Marine Coastal/Supratidal | Coastal Brackish/Saline Lagoons/Marine Lakes | suitable | breeding |
| Marine Coastal/Supratidal | Coastal Brackish/Saline Lagoons/Marine Lakes | suitable | non-breeding |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | breeding |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | non-breeding |
| Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | suitable | breeding |
| Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | suitable | non-breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | non-breeding |
| Marine Intertidal | Rocky Shoreline | suitable | breeding |
| Marine Intertidal | Rocky Shoreline | suitable | non-breeding |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | suitable | breeding |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | suitable | non-breeding |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | breeding |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | non-breeding |
| Marine Intertidal | Tidepools | suitable | breeding |
| Marine Intertidal | Tidepools | suitable | non-breeding |
| Marine Neritic | Estuaries | suitable | breeding |
| Marine Neritic | Estuaries | suitable | non-breeding |
| Marine Neritic | Macroalgal/Kelp | suitable | breeding |
| Marine Neritic | Macroalgal/Kelp | suitable | non-breeding |
| Marine Neritic | Pelagic | marginal | resident |
| Marine Neritic | Seagrass (Submerged) | suitable | breeding |
| Marine Neritic | Seagrass (Submerged) | suitable | non-breeding |
| Marine Neritic | Subtidal Loose Rock/pebble/gravel | suitable | breeding |
| Marine Neritic | Subtidal Loose Rock/pebble/gravel | suitable | non-breeding |
| Marine Neritic | Subtidal Rock and Rocky Reefs | suitable | breeding |
| Marine Neritic | Subtidal Rock and Rocky Reefs | suitable | non-breeding |
| Marine Neritic | Subtidal Sandy | suitable | breeding |
| Marine Neritic | Subtidal Sandy | suitable | non-breeding |
| Marine Neritic | Subtidal Sandy-Mud | suitable | breeding |
| Marine Neritic | Subtidal Sandy-Mud | suitable | non-breeding |
| Altitude | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Unknown | Unknown | ||||||
|
|||||||||
| Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
| Ongoing | Unknown | Unknown | Unknown | ||||||
|
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| Human intrusions & disturbance | Recreational activities | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2023) Species factsheet: Sternula saundersi. Downloaded from
http://datazone.birdlife.org/species/factsheet/saunderss-tern-sternula-saundersi on 29/05/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 29/05/2023.
