Salton Sea, Sonny Bono Salton Sea National Wildlife Refuge
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View Sources (7)
Grebe Survey Summary
- Max Adults: 212
- Year: 2007
- Most Recent Adults: 212
- Year: 2007
- Survey Type: Shore
- Most Common Threats Reported: Lack of/poor quality nesting habitat; wind/wave inundation
- Lake name:
- Salton Sea, Sonny Bono Salton Sea National Wildlife Refuge
- Location:
- California
- HydroLAKE ID:
- 829
- Latitude:
- 33.335417
- Longitude:
- -115.835417
- Surface area (km2):
- 956.9
- Basin type:
- non-reservoir
- Management agency:
- U.S. Fish and Wildlife Service; California Department of Fish and Wildlife; Salton Sea Authority
- Region associations:
- Sonny Bono Salton Sea NWR; Salton Sea State Recreation Area; Coachella Valley; Imperial Irrigation District; Historic Colorado River Delta
- Designations:
- National Wildlife Refuge; State Recreation Area
- Comments:
- The largest lake in California, the Salton Sea is a terminal lake that is 50% saltier than the sea. While functioning as a sump for agriculture runoff, it has one of the largest most biodiverses avian communities in the southwest. It is threatened by increasing salinity and water quality issues.
Surveys (3)
Survey Citation:
Ivey, G. L. 2004. Conservation assessment and management plan for breeding Western and Clarkâs Grebes in California. Unpublished technical report. American Trader Trustee Council, California. . Accessed 15 January 2020.
-
Time period
N/A -
Source
Conservation Assessment, Management Plan -
Both Western and Clarks?
Y
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | presence | ? |
| Most Recent Adults | 1 to 100 | presence | ? |
| Max Nests | 1 to 100 | presence | ? |
| Most Recent Nests | 1 to 100 | presence | ? |
| 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 at the mouth of the Whitewater River and noted as colony site, no numbers, year, nor other details (Grinnell and Miller 1944, Garrett and Dunn 1981, Small 1994).
Survey Citation:
Lee, D. 1966. Winter breeding of the Western Grebe. Short communications. San Diego State College. San Diego, California.
-
Time period
1944, 1956 -
Source
Notes -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | presence | 1944, 1956 |
| Most Recent Adults | 1 to 100 | presence | 1956 |
| Max Nests | 1 to 100 | 1 | 1944 |
| Most Recent Nests | 1 to 100 | 1 | 1944 |
| Max Chicks | 1 to 100 | 1 | 1956 |
| Most Recent Chicks | 1 to 100 | 1 | 1956 |
Comments:
Rare record of nesting in southern California by Grinnell and Miller from Pacific Coast Avifauna, no. 27:39, 1944. No other details. One dead chick found June 1956 by Crouch (Audubon Field Notes 10:409, 1956).
Survey Citation:
Robison, K., R. Weems, and D. Anderson. 2008. Western and Clark's Grebe conservation and management in California. Annual report for year three (2007). Report for American Trader and Kure/ Stuyvesant Trustee Councils and National Fish and Wildlife Foundation, California.
-
Type
shore -
Time period
11 September 2007 -
Source
Report -
Both Western and Clarks?
Y
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 101 to 500 | 212 | 2007 |
| Most Recent Adults | 101 to 500 | 212 | 2007 |
| Max Nests | N/A | N/A | N/A |
| Most Recent Nests | N/A | N/A | N/A |
| Max Chicks | 0 | 0 | 2007 |
| Most Recent Chicks | 0 | 0 | 2007 |
Comments:
No nesting vegetation. Subsequent reports have their own entries.
Sources of Information
- Messager, M. L., B. Lehner, G. Grill, I. Nedeva, and O. Schmitt. 2016. Estimating the volume and age of water stored in global lakes using a geo-statistical approach. Nature Communications 7:13603. Data is available at www.hydrosheds.org.
- Sonny Bono Salton Sea National Wildlife Refuge Map
- Salton Sea Background Information
- About Salton Sea
- Salton Sea Water Issues
- Salton Sea State Recreation Area
- Salton Sea Authority