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O'Neill Lake/Lake O'Neill, Camp Pendleton

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Grebe Survey Summary

  • Max Adults: 12
  • Year: 2001
  • Most Recent Adults: 12
  • Year: 2001
  • Survey Type: N/A
  • Most Common Threats Reported: N/A
Lake name:
O'Neill Lake/Lake O'Neill, Camp Pendleton
Location:
California
Latitude:
33.3295568
Longitude:
-117.3227506
Basin type:
reservoir
Management agency:
U.S. Marine Corps; U.S. Bureau of Reclamation
Region associations:
Lake O'Neill Recreational Park; Camp Pendleton; Santa Margarita River
Comments:
In San Diego County, O'Neill Lake is different from O'Neill Forebay. Western and Clark's grebes were mostly wintering species in San Diego County lakes and reservoirs until the 1950s, when they started to breed there. Unitt (2004) proposes that building dams, filling reservoirs, and stocking them with fish encouraged grebes to breed in those inland waters in increasing numbers.

Surveys (1)

Survey Citation:
Unitt, P. 2004. San Diego County Bird Atlas. In Proceedings of the San Diego Society of Natural History, 39:i–vii, 1–639. Available: http://sdplantatlas.org/BirdAtlas/BirdPages.aspx.

  • Time period
    1999, 30 July 2001
  • Source
    Website
  • Both Western and Clarks?
    Y
Count Type Range Max Year
Max Adults 1 to 100 12 2001
Most Recent Adults 1 to 100 12 2001
Max Nests 1 to 100 presence 1999-2001
Most Recent Nests 1 to 100 presence 1999-2001
Max Chicks 1 to 100 1 2001
Most Recent Chicks 1 to 100 1 2001

Comments:

Species account of Western and Clark's breeding in San Diego County. Small numbers of Western and Clark's grebes observed breeding at this lake, some mixed pairs. Observer was P.A. Ginsburg.

Sources of Information

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