Population information

Order name Anseriformes
Family name Anatidae
Scientific name Tadorna tadornoides Common name Australian Shelduck
Population name SE Australia
Breeding range SE Australia, including Tasmania 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 No quality assessment
WPE 4 2005 2005 100,000 1,000,000 No quality assessment [R64]
WPE 5 2008 2011 100,000 1,000,000 Best guess [S7080] [R1028] [R1101] [R1112] [R1148]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 1982 2011 FLU Reasonable [T5910] [R1148]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 -1 -1 Not Set
WPE 4 2006 10000
WPE 5 2012 10000


  • R64 - BirdLife International. 2005. Threatened birds of the world 2005. Species factsheets available at?www.birdlife.org
  • R1028 - Blackhall, S. In litt. 3 April 2012 (advice from Department of Primary Industries, Parks, Water and Environment, Tasmania, 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.
  • 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
  • R1148 - Porter, J.L. and Kingsford, R.T. 2011. Aerial Survey of Wetland Birds in Eastern Australia - October 2011. Annual Summary Report, Australian Wetlands and Rivers Centre, University of New South Wales. 29 pp. Also available online at http://www.wetrivers.unsw.edu.au/wp-content/uploads/2011/12/Eastern-Australia_waterbird-aerial-survey_2011.pdf


  • S7080 - Estimate based on 2008 national survey of waterbirds and annual aerial surveys over about 10% of the population's range, adjusted to account for birds missed in aerial surveys (species feeds in dryland habitats such as pastures).
  • T5910 - Well adapted to agricultural landscape; numbers fluctuate with rainfall.

Copyright Wetlands International 2012

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