Buena Vista Lagoon

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 Unpublished technical report.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
• Source
  Conservation Assessment, Management Plan
• Both Western and Clarks?
  Y

Count Type	Range	Max	Year
Max Adults	1 to 100	presence	2000
Most Recent Adults	1 to 100	presence	2000
Max Nests	1 to 100	presence	2000
Most Recent Nests	1 to 100	presence	2000
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 breeding grebes and noted as colony site in Buena Vista Lagoon in 2000, no numbers or other details. Source is San Diego Natural History Museum (2000).

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
  1997, 1999
• Source
  Website
• Both Western and Clarks?
  N

Count Type	Range	Max	Year
Max Adults	101 to 500	132	1999
Most Recent Adults	101 to 500	132	1999
Max Nests	1 to 100	presence	1997-1999
Most Recent Nests	1 to 100	presence	1999
Max Chicks	N/A	N/A	N/A
Most Recent Chicks	N/A	N/A	N/A

Comments:

Species account of Western and Clark's breeding in San Diego County. Western grebes nested here since 1997 and numbers are occasionally large but there was no confirmed breeding of Clark's grebes. Observer in 1999 was M. Freda.