Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Nycticorax nycticorax Common name Black-crowned Night-heron
Population name nycticorax, South Asia
Breeding range S Asia Non-breeding range
Red List Category Least Concern
Ramsar regions Asia
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1987 1991 25,000 100,000 [R519]
WPE 2 1987 1991 25,000 100,000 [R519]
WPE 3 1987 1991 25,000 100,000 [R519]
WPE 4 0 0 100,000 150,000 [S3900] [R32]
WPE 5 0 0 100,000 150,000 [S7734] [R32]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1977 1991 STA [R519]
WPE 2 1977 1991 STA [R519]
WPE 3 1977 1991 STA [R519]
WPE 4 1977 1991 STA [R519]
WPE 5 1977 1991 STA [R519]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 1000
WPE 4 2006 1250
WPE 5 2012 1200

References

  • R519 - Perennou, C.P., Mundkur, T. and Scott, D.A. 1994. The Asian Waterfowl Census 1987-1991: distribution and status of Asian waterfowl. IWRB Spec. Publ. No. 24; AWB Spec. Publ. No. 86. Slimbridge, UK and Kuala Lumpur, Malaysia.
  • R32 - Balachandran, S., in litt. 2005.

Notes

  • S3900 - 33: Population estimate for India 100,000.
  • S7734 - 33: Population estimate for India 100,000.



Copyright Wetlands International 2012

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