Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Bubulcus ibis Common name Cattle Egret
Population name coromanda, Oceania
Breeding range New Zealand, Australia, New Guinea Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes Often placed in genus Ardea.

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 2003 2003 100,000 1,000,000 [S3782] [R341]
WPE 1 1987 1991 25,000 1,000,000 [R519]
WPE 2 0 0 100,000 100,000 [R422]
WPE 3 0 0 100,000 100,000 [R421]
WPE 5 1999 2011 25,000 1,000,000 Best guess [S7660] [R341] [R1037] [R1101]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 1990 2000 INC [T2360] [R341]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 5 1982 2011 INC Poor [T5591] [R1101] [R426]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 2006 10000
WPE 1 0 -1
WPE 2 1997 1000
WPE 3 2002 1000
WPE 5 2012 10000

References

  • R341 - Jaensch, Roger, August 2005. Detailed data and notes on numbers and distribution of waterbirds in Australia, updated from Jaensch, 2003, and derived from more than 90 Australian sources including Wetlands International, Birds Australia and Jaensch, 2003,
  • 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.
  • R422 - Maddock, M. and Geering, D. 1994. Range expansion and migration of the Cattle Egret. Ostrich 65 (2):191-203.
  • R421 - Maddock, M. (pers. comm.). 1993. Literature on Australasian Ardeidae, summarised for IWRB.
  • R1037 - Chatto, R. 2000. Waterbird breeding colonies in the Top End of the Northern Territory. Technical Report 69, Parks and Wildlife Commission of the Northern Territory, Australia.
  • R1101 - Jaensch, R. April 2012. Detailed data and notes on numbers and trends of waterbirds in Australia and other parts of the Oceania region, in a spreadsheet prepared for Wetlands International - Oceania for the 5th edition of WPE.
  • R426 - Madsen, J., Reed, A. and Andreev, A. 1996. Status and trends of geese (Anser sp., Branta sp.) in the world: a review, updating and evaluation. In: Proceedings of Anatidae 2000. M. Birkan, J. van Vessem, P. Havet, J. Madsen, B. Trolliet, and M. Moser (eds.

Notes

  • S3782 - 344: estimate for Australia 100,000 - 1,000,000, and overall population in Oceania probably at lower end of range.
  • T2360 - Trend only known in Australia.
  • S7660 - Estimate in broad range based on size of large colonies in far N Australia and status as common and locally breeding in coastal E Australia.
  • T5591 - Ongoing, long-term trend of increase throughout population's range.



Copyright Wetlands International 2012

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