Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Egretta garzetta Common name Little Egret
Population name immaculata
Breeding range Australia (not Tasmania), New Zealand Non-breeding range
Red List Category Least Concern
Ramsar regions Asia Oceania
Notes Included in nigripes by Marchant & Higgins (1990).

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1987 1991 25,000 1,000,000 [R519]
WPE 2 1987 1991 25,000 1,000,000 [R519]
WPE 3 0 0 -1 -1
WPE 4 2003 2003 25,000 100,000 [S3597] [R341]
WPE 5 2002 2004 25,000 100,000 Best guess [S6446] [R341] [R1027]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 0 0 Unknown No idea

Population 1% level

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

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.
  • 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,
  • R1027 - Bishop, K.D. 2003. A Review of the Avifauna of the TransFly Eco-region: the status, distribution, habitats and conservation of the region?s birds. Report to WWF South Pacific Program.

Notes

  • S3597 - Regular in New Zealand (180) but estimate refers only to Australia.
  • S6446 - Estimate based on review of previous information and some recent information, which suggest that total numbers in Australia and S New Guinea are between 25,000 and 100,000, assuming most of the S New Guinea birds are immaculata. If immaculata and nigripes are combined as one population, estimate may be better expressed as a range of 25,000-1,000,000 in view of WPE4 data for nigripes.



Copyright Wetlands International 2012

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