Population information

Order name Anseriformes
Family name Anatidae
Scientific name Tadorna tadornoides Common name Australian Shelduck
Population name SW Australia
Breeding range SW Australia Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes In WPE2 this population belonged to one single population (S Australia/Tasmania). WPE4: separation of SW and SE populations not confirmed.

Conservation Framework

Conservation framework Notes
No conservation frameworks

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 -1 -1
WPE 4 2003 2003 240,000 240,000 [S4878] [R341]
WPE 5 1989 2008 51,600 240,000 Expert opinion [S7079] [R287] [R1112]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 0 0 Unknown No idea [T5909]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 0 -1
WPE 4 2006 2400
WPE 5 2012 1100


  • 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,
  • R287 - Halse, S.A., Vervest, R.M., Munro, D.R., Pearson, G.B. and Yung, F.H., 1992. Annual waterfowl counts in south-western Australia - 1989/90. Technical Report 29, Western Australian Department of Conservation and Land Management.
  • R1112 - Kingsford, R.T., Porter, J.L. and Halse, S.A. 2012. National waterbird assessment. Waterlines report, National Water Commission, Canberra. Available online at http://nwc.gov.au/publications/waterlines/74


  • S4878 - Estimate based on comprehensive aerial and ground survey (290).
  • S7079 - Maximum estimate is the highest known count (1989); minimum estimate is from the 2008 national survey of waterbirds.
  • T5909 - Well adapted to agricultural landscape; numbers possibly fluctuate with rainfall but as yet no systematic analysis of trend.

Copyright Wetlands International 2012

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