Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Nycticorax nycticorax Common name Black-crowned Night-heron
Population name nycticorax, E, SE Asia
Breeding range Japan, Korea E & S China, Taiwan, Indochina, Malaysia, Indonesia, Philippines Non-breeding range Japan, SE China, Indochina, Taiwan, Philippines, Indonesia
Red List Category Least Concern
Ramsar regions Asia
Notes

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 2002 2002 100,000 1,000,000 [R604]
WPE 4 2006 2006 100,000 1,000,000 [R668]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 5 2006 2006 100,000 1,000,000 Best guess [R668]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1981 1991 STA [R124]
WPE 4 1981 1991 STA [R124]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1981 1991 STA [R124]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 10000
WPE 4 2006 10000
WPE 1 0 -1
WPE 2 0 -1
WPE 5 2012 10000

References

  • R604 - Specialist]] Unpublished information supplied by Wetlands International Specialist Groups, 2002.
  • R124 - Chan, Simba, In litt,. 2002. Unpublished information on Asian waterbirds.
  • R668 - Unpublished information supplied by Wetlands International Specialist Groups, 2006.

Notes




Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on