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Shasta Valley Wildlife Area

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Grebe Survey Summary

  • Max Adults: presence
  • Year: 2000-2004?
  • Most Recent Adults: presence
  • Year: 2004?
  • Survey Type: N/A
  • Most Common Threats Reported: N/A
Lake name:
Shasta Valley Wildlife Area
Location:
California
Latitude:
41.686875
Longitude:
-122.478482
Management agency:
California Department of Fish and Wildlife
Region associations:
Siskiyou; Shasta Valley
Designations:
Wildlife Area
Comments:
No specific location given for this WA so coordinates are for Trout Lake. Shasta Valley Wildlife Area has lack of water currently and is shut down.

Surveys (2)

Survey Citation:
Ivey, G. L. 2004. Conservation assessment and management plan for breeding Western and Clark’s Grebes in California. Unpublished technical report. American Trader Trustee Council, California. . Accessed 15 January 2020.

  • Time period
    2000, 2004?
  • Source
    Conservation Assessment, Management Plan
  • Both Western and Clarks?
    N/A
Count Type Range Max Year
Max Adults 1 to 100 presence 2000-2004?
Most Recent Adults 1 to 100 presence 2004?
Max Nests 1 to 100 ~13 2000-2004?
Most Recent Nests 1 to 100 ~13 2004?
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

This entry to capture historical record of breeding grebes in CA prior to 2002. There were an average of 13 nests in "recent years" (R. Smith, pers. comm.). No years provided so I'm estimating 2000-2004 due to paper date of 2004.

Survey Citation:
Ivey, G.L. and C.P. Herziger. 2006. Intermountain west waterbird conservation plan, version 1.2. A plan associated with the Waterbird Conservation for the Americas Initiative. Published by U.S. Fish and Wildlife Service Pacific Region, Portland, Oregon.

  • Time period
    N/A
  • Source
    Conservation Plan
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 26 ?
Most Recent Adults 1 to 100 26 ?
Max Nests 1 to 100 13 ?
Most Recent Nests 1 to 100 13 ?
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Appendix D, Table D-2, data is an average of 13 nests but no year given, area population estimate is 26 (nests X 2), source is R. Smith pers. comm.

Sources of Information

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