Data Zone
Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
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.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | 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 | low |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 31,600,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 24700-743000 mature individuals | poor | estimated | 2023 |
| Population trend | stable | - | suspected | - |
| Generation length | 8.66 years | - | - | - |
Population justification: The global population size is estimated at 37,000-1,113,999 individuals (Wetlands International 2023), which equates to 24,700-743,000 mature individuals. The overall population trend is considered to be fluctuating over three generations (25.98 years) (Wetlands International 2023).
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | ||||
| Brunei | extant | native | ||||
| Christmas Island (to Australia) | extant | native | ||||
| Cocos (Keeling) Islands (to Australia) | extant | native | ||||
| Indonesia | extant | native | ||||
| Japan | possibly extinct | native | yes | |||
| Malaysia | extant | native | ||||
| Micronesia, Federated States of | extant | native | yes | |||
| New Caledonia (to France) | extant | native | ||||
| New Zealand | extant | introduced | yes | |||
| Northern Mariana Islands (to USA) | extant | native | ||||
| Palau | extant | native | yes | |||
| Papua New Guinea | extant | native | ||||
| Philippines | extant | native | ||||
| Solomon Islands | extant | native | ||||
| Timor-Leste | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Australia | Diamantina Floodplain |
| Australia | Gwydir Wetlands |
| Australia | Macquarie Marshes |
| Philippines | Manila Bay |
| Philippines | Pagbilao and Tayabas Bay |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Rural Gardens | suitable | non-breeding |
| Artificial/Terrestrial | Rural Gardens | suitable | breeding |
| Artificial/Terrestrial | Urban Areas | suitable | non-breeding |
| Artificial/Terrestrial | Urban Areas | suitable | breeding |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | non-breeding |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | breeding |
| Grassland | Subtropical/Tropical Seasonally Wet/Flooded | suitable | non-breeding |
| Grassland | Subtropical/Tropical Seasonally Wet/Flooded | suitable | breeding |
| Marine Coastal/Supratidal | Coastal Brackish/Saline Lagoons/Marine Lakes | suitable | non-breeding |
| Marine Coastal/Supratidal | Coastal Brackish/Saline Lagoons/Marine Lakes | suitable | breeding |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | non-breeding |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | breeding |
| Marine Coastal/Supratidal | Coastal Sand Dunes | suitable | non-breeding |
| Marine Coastal/Supratidal | Coastal Sand Dunes | suitable | breeding |
| Marine Neritic | Estuaries | suitable | non-breeding |
| Marine Neritic | Estuaries | suitable | breeding |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | non-breeding |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | breeding |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | non-breeding |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | breeding |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | non-breeding |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | breeding |
| Wetlands (inland) | Permanent Saline, Brackish or Alkaline Lakes | suitable | non-breeding |
| Wetlands (inland) | Permanent Saline, Brackish or Alkaline Lakes | suitable | breeding |
| Altitude | 0 - 1600 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Nankeen Night Heron Nycticorax caledonicus. Downloaded from
https://datazone.birdlife.org/species/factsheet/nankeen-night-heron-nycticorax-caledonicus on 26/12/2024.
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 26/12/2024.