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closeIUCN Red List history
| Year | Category |
|---|---|
| 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 |
Species attributes
| Migratory status | full migrant | Forest dependency | Low |
| Land mass type | Average mass | 383 g |
Distribution
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 4,100,000 | |
| Number of locations | - | |
| Fragmentation | - |
Population & trend
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | poor | Estimated | 2009 | |
| Population trend | Stable | - | ||
| Number of subpopulations | - | - | - | |
| Largest subpopulation | - | - | - | |
| Generation length (yrs) | 6.6 | - | - | - |
| Population justification: The global population is estimated to number 100,000-1,000,000 individuals (Wetlands International 2006), while national population estimates include: c.100-10,000 breeding pairs in Taiwan; c.100-10,000 breeding pairs and < c.1,000 wintering individuals in Korea and c.100-100,000 breeding pairs in Japan (Brazil 2009). | ||||
| Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats. | ||||
Country/Territory distribution
| Country/Territory | Occurrence status | Extinct | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|
| Australia | Native | No | |||
| Bangladesh | Native | No | |||
| Brunei | Native | No | |||
| Cambodia | Native | No | |||
| China (mainland) | Native | No | |||
| Christmas Island (to Australia) | Native | No | |||
| Cocos (Keeling) Islands (to Australia) | Native | No | Yes | ||
| Fiji | Native | No | |||
| French Polynesia | Native | No | |||
| Guam (to USA) | Native | No | Yes | ||
| India | Native | No | |||
| Indonesia | Native | No | |||
| Japan | Native | No | |||
| Malaysia | Native | No | |||
| Marshall Islands | Native | No | Yes | ||
| Micronesia, Federated States of | Native | No | Yes | ||
| Myanmar | Native | No | |||
| Nauru | Vagrant | No | |||
| New Caledonia (to France) | Native | No | |||
| New Zealand | Native | No | Yes | ||
| North Korea | Native | No | |||
| Northern Mariana Islands (to USA) | Native | No | Yes | ||
| Palau | Native | No | Yes | ||
| Papua New Guinea | Native | No | |||
| Philippines | Native | No | |||
| Singapore | Native | No | |||
| Solomon Islands | Native | No | Yes | ||
| South Korea | Native | No | |||
| Taiwan (China) | Native | No | |||
| Thailand | Native | No | |||
| Timor-Leste | Native | No | |||
| Tonga | Native | No | |||
| Vietnam | Native | No |
Habitats & altitude
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | breeding |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | non-breeding |
| Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | major | breeding |
| Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | major | non-breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | non-breeding |
| Marine Intertidal | Mud Flats and Salt Flats | suitable | breeding |
| Marine Intertidal | Rocky Shoreline | major | breeding |
| Marine Intertidal | Rocky Shoreline | major | non-breeding |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | marginal | resident |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | marginal | resident |
| Marine Intertidal | Tidepools | suitable | breeding |
| Marine Intertidal | Tidepools | suitable | non-breeding |
| Marine Neritic | Estuaries | suitable | non-breeding |
| Marine Neritic | Estuaries | suitable | breeding |
| Altitude | 0 - 0 m | Occasional altitudinal limits |
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 (2013) Species factsheet: Egretta sacra. Downloaded from
http://www.birdlife.org on 22/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 22/05/2013.
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 | Least Concern |
| Family | Ardeidae (Herons and egrets) |
| Species name author | (Gmelin, 1789) |
| Population size | mature individuals |
| Population trend | Stable |
| Distribution size (breeding/resident) | 4,100,000 km2 |
| Country endemic? | No |
| Links to further information | |
| - Summary information on this species | |
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