LC
African Oystercatcher Haematopus moquini



Taxonomy

Taxonomic source(s)
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.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2021 Least Concern
2017 Least Concern
2016 Near Threatened C1
2012 Near Threatened C1
2008 Near Threatened C1
2006 Near Threatened
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency does not normally occur in forest
Land-mass type continent
shelf island
Average mass 692 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 705,000 km2 medium
Extent of Occurrence (non-breeding) 1,840,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 4450 mature individuals medium estimated 2014
Population trend increasing - estimated -
Generation length 13.4 years - - -

Population justification: Population genetics suggest that there has been a low historical population size (Bray and Hockey 2015). Based on data from shoreline counts and aerial surveys, the population is now estimated at 6,670 individuals (Underhill 2014), roughly equivalent to 4,450 mature individuals.

Trend justification: The population is thought to be increasing thanks to improved habitat management on near-shore islands, with a c.45% increase between 1979/1980 and the early 2000s (Underhill 2014, Loewenthal et al. 2015). There have been some local declines, but it appears possible that in a large number of cases these declines may be a result of individuals moving to adjacent habitats after a site has experienced some degradation (in 72% of cases where a site showed a decline, the adjacent areas showed a population increase) (Loewenthal et al. 2015). Analysis of data from the South African Bird Atlas Project 1 and 2 show an increase in range size and reporting rates for this species (Brown et al. 2019).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Angola extant native yes
Mozambique extant vagrant yes
Namibia extant native yes
South Africa extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Namibia Lüderitz Bay islands
Namibia Mercury Island
Namibia Mile 4 saltworks
Namibia Namib-Naukluft Park
Namibia Possession Island
Namibia Sandwich Harbour
Namibia Sperrgebiet
Namibia Walvis Bay
South Africa Algoa Bay Islands: Addo Elephant National Park
South Africa Dassen Island
South Africa De Hoop Nature Reserve
South Africa Dwesa-Cwebe Nature Reserve
South Africa Dyer Island Nature Reserve
South Africa Maitland - Gamtoos coast
South Africa Rietvlei Wetland: Table Bay Nature Reserve
South Africa Robben Island
South Africa Swartkops Estuary - Redhouse and Chatty Saltpans
South Africa West Coast National Park and Saldanha Bay islands
South Africa Woody Cape Section: Addo Elephant National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands major breeding
Marine Intertidal Rocky Shoreline major resident
Marine Intertidal Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc major breeding
Marine Intertidal Shingle and/or Pebble Shoreline and/or Beaches major resident
Marine Intertidal Tidepools major resident
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Species disturbance, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Unspecified species Timing Scope Severity Impact
Future Minority (<50%) Slow, Significant Declines Low Impact: 3
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Problematic native species/diseases - Larus dominicanus Timing Scope Severity Impact
Ongoing Majority (50-90%) Negligible declines Low Impact: 5
Stresses
Reduced reproductive success
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: African Oystercatcher Haematopus moquini. Downloaded from https://datazone.birdlife.org/species/factsheet/african-oystercatcher-haematopus-moquini on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/12/2024.