Population information

Order name Charadriiformes
Family name Laridae
Scientific name Thalasseus elegans Common name Elegant Tern
Population name Pacific N America
Breeding range Pacific coast S California & Gulf of California, Mexico Non-breeding range Pacific coast California to Chile
Red List Category Near Threatened
Ramsar regions Neotropics North America

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 51,000 90,000 [R387]
WPE 4 0 0 51,000 90,000 [R387]
WPE 1 0 0 250,000 250,000 [R164]
WPE 2 0 0 250,000 250,000 [R164]
WPE 5 2003 2005 270,000 270,000 [R1186]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1957 1992 FLU [R104]
WPE 4 1957 1992 FLU [R104]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1957 1992 FLU [R104]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 700
WPE 4 2006 700
WPE 1 1994 2500
WPE 2 1997 2500
WPE 5 2012 2700


  • R387 - Kushlan, James, A., Melanie J. Steinkamp, Katharine Parsons, Jack Capp, Martin Acosta Cruz, Malcolm Coulter, Ian Davidson, Loney Dickson, Naomi Edelson, Richard Elliot, R. Michael Erwin, Scott Hatch, Stephen Kress, Robert Milko, Steve Miller, Kyra Mills, Richard Paul, Roberto Phillips, Jorge E. Saliva, Bill Sydeman, John Trapp, Jennifer Wheeler, and Kent Wohl. 2002. North American Waterbird Conservation Plan, Version 1. Waterbird Conservation for the Americas, Washington, DC, USA.
  • R104 - Burness, G., Lefevre, K. and Collins, C. 1999. Elegant Tern (Sterna elegans). In: The birds of North America, No 404. (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, PA and The American Ornithologists' Union, Washington D.C.
  • R164 - Croxall, J.P. (ed.). 1991. Status and Conservation of the World's Seabirds: A Supplement. ICBP Technical Publication No. 11. Cambridge, UK.
  • R1186 - Velarde, E., Cartron, J-L. E.., Anderson, D.W., Reb?n Gallardo, F., Palacios, E. and Rodr?guez, C.. 2005. Nesting seabirds of the Gulf of California?s offshore islands: diversity, ecology, and conservation. Pages 452-470 in Biodiversity, Ecosystems, and Conservation in Northern Mexico (J-L. Cartron, G. Ceballos and R. S. Felger, Eds.). Oxford University, Oxford. Cited in: Mellink, E., Palacios, E. and Amador, E. 2007. Colonies of Four Species of Terns and the Black Skimmer in Western Mexico. Waterbirds 30(3): 358-366.


Copyright Wetlands International 2012

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