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Slaty Egret Egretta vinaceigula

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable  

IUCN Red List history

Year Category
2013 Vulnerable
2012 Vulnerable
2008 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
1988 Threatened

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type continent
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 110,000 medium
Extent of Occurrence non-breeding (km2) 226,000 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-3300 medium Estimated 0
Population trend Decreasing medium -
Number of subpopulations 1 - - -
Largest subpopulation 3000-5000 - - -
Generation length (yrs) 6.6 - - -
Population justification: A population estimate of 3,000-5,000 individuals follows new surveys and replaces Collar and Stuart's (1985) estimate of 5,000-10,000 individuals. This roughly equates to 2,500-3,300 mature individuals.
Trend justification: The population is suspected to be in decline owing to the effects of habitat conversion and degradation, and human disturbance. The likely rate of decline, however, has not been estimated.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Angola Unknown Extant   Yes    
Botswana Native Extant       Yes
Congo, The Democratic Republic of the Native Extant   Yes    
Malawi Vagrant Extant   Yes    
Mozambique Native Extant       Yes
Namibia Native Extant       Yes
South Africa Native Extant       Yes
Zambia Native Extant   Yes    
Zimbabwe Native Extant   Yes    

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Botswana Linyanti swamp/Chobe river site factsheet
Botswana Okavango Delta site factsheet
Namibia Eastern Caprivi wetlands site factsheet
Namibia Mahango Game Reserve and Kavango river site factsheet
Namibia Tsumkwe pan system site factsheet
Zambia Bangweulu Swamps site factsheet
Zambia Barotse Floodplains site factsheet
Zambia Kafue Flats site factsheet
Zambia Kafue National Park site factsheet
Zambia Liuwa Plain National Park site factsheet
Zambia Simungoma site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major resident
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major resident
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Gathering terrestrial plants / Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species disturbance, Ecosystem degradation, Reduced reproductive success
Climate change & severe weather Other impacts Timing Scope Severity Impact
Ongoing Majority (50-90%) Causing/Could cause fluct Medium Impact: 6
Stresses
Ecosystem degradation
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species disturbance, Reduced reproductive success
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation
Natural system modifications Dams & water management/use / Abstraction of surface water (unknown use) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation
Natural system modifications Fire & fire suppression / Trend Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation
Natural system modifications Other ecosystem modifications Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluct Low Impact: 5
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents / Herbicides and pesticides Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Egretta vinaceigula. Downloaded from http://www.birdlife.org on 28/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/08/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Vulnerable
Family Ardeidae (Herons)
Species name author (Sharpe, 1895)
Population size 2500-3300 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 110,000 km2
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change