Population information

Order name Charadriiformes
Family name Laridae
Scientific name Larus delawarensis Common name Ring-billed Gull
Population name North America (bre)
Breeding range SW & S Canada, NW & NC USA, Great Lakes to Newfoundland Non-breeding range Coasts of S USA, Central America, N Caribbean
Red List Category Least Concern
Ramsar regions Neotropics North America
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 3,000,000 4,000,000 [R8]
WPE 2 0 0 3,000,000 4,000,000 [R8]
WPE 3 0 0 2,550,000 2,550,000 [R387]
WPE 4 0 0 2,550,000 2,550,000 [R387]
WPE 5 1976 2006 2,550,000 2,550,000 [R1147]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1920 1990 INC [R8]
WPE 2 1966 1996 INC [R565]
WPE 3 1966 2000 INC [R563]
WPE 4 1966 2000 INC [R563]
WPE 5 1976 2009 INC [R1147]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 20000
WPE 2 1997 20000
WPE 3 2002 20000
WPE 4 2006 20000
WPE 5 2012 25500

References

  • R8 - American Ornithologists Union. (in press). Birds of North America. Philadelphia. The Academy of Natural Sciences, Washington DC.
  • R565 - Sauer, J.R., Schwartz, S., Peterjohn, B.G. and Hines, J.E. 1996. The North American Breeding Bird Survey Home Page. Version 94.3 Natl. Biol. Serv., Patuxtent Wildlife Research Center, Laurel MD. URL: http://www.mbr.nbs.gov/bbs/bbs.html.
  • 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.
  • R563 - Sauer, J. R., J. E. Hines, and J. Fallon. 2001. The North American Breeding Bird Survey, Results and Analysis 1966 - 2000. Version 2001.2, USGS Patuxent Wildlife Research Center, Laurel, MD.
  • R1147 - Pollet, I. L., Shutler, D., Chardine, J. and Ryder, J.P. 2012. Ring-billed Gull (Larus delawarensis), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology.

Notes




Copyright Wetlands International 2012

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