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Order
Family
Species
Population
Discontinued Size - year Size Size estimate quality Size references Trend - year Trend Trend quality Trend references 1% threshold 1% yearset Notes
Ciconiiformes
Ardeidae
Ixobrychus exilis (Least Bittern)
exilis 2000 - 2000 128,000 - 128,000 Best guess [R687] 0 - 0 Unknown No idea 1300 2012 [S7788]
pullus 0 - 0 -1 - -1 No quality assessment 0 - 0 Unknown No idea -1 -1
bogotensis 2011 - 2011 1,000 - 1,000 Best guess [R1010] 2001 - 2010 DEC Reasonable [R1010] 10 2012
erythromelas 2005 - 2011 10,000 - 25,000 Best guess [R1010] 0 - 0 Unknown No idea 250 2012
peruvianus 2011 - 2011 1,000 - 5,000 Best guess [R1141] [R1183] 2001 - 2010 STA Poor [R1183] [R1141] 20 2012

References

  • R687 - Waterbird Conservation for the Americas. 2001. Continental Marshbird Conservation Planning Workshop, August 2001, Denver, Colorado.
  • R1010 - Asociaci?n Calidris. 2012. Unpublished information from the Neotropical Waterbird Census in Colombia, 1992-2011.
  • R1141 - Ottema, O. 2006. Waterbirds in Suriname: Final report. STINASU Foundation for Nature Conservation Suriname, Paramaribo (unpublished report).
  • R1183 - Unterkofler, D. and Blanco, D.E. 2012. Unpublished information on Argentine waterbirds.

Notes

  • S7788 - No new data. 4,500 (1,500 Bpairs) in Canada (COSEWIC. 2009).



Copyright Wetlands International 2012

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