Big Johnson Reservoir
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View Surveys (1)
View Sources (3)
Grebe Survey Summary
- Max Adults: 20
- Year: 2010
- Most Recent Adults: 20
- Year: 2010
- Survey Type: Shore
- Most Common Threats Reported: N/A
- Lake name:
- Big Johnson Reservoir
- Location:
- Colorado
- Latitude:
- 38.7498723
- Longitude:
- -104.6943248
- Surface area (km2):
- 1.1
- Basin type:
- reservoir
- Dam completion date:
- 1910
- Management agency:
- Fountain Valley Mutual Irrigation Company
- Lake use:
- irrigation
Surveys (1)
Survey Citation:
Cavitt, J. F., S. L. Jones, N. M. Wilson, J. S Dieni, T. S. Zimmerman, R. H. Doster, and W. H. Howe. 2014. Atlas of breeding colonial waterbirds in the interior western United States. Research Report, U.S. Department of the Interior, Fish and Wildlife Service, Denver, Colorado.
-
Type
shore -
Time period
9 July 2010 -
Source
Report -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | 20 | 2010 |
| Most Recent Adults | 1 to 100 | 20 | 2010 |
| Max Nests | N/A | N/A | N/A |
| Most Recent Nests | N/A | N/A | N/A |
| Max Chicks | N/A | N/A | N/A |
| Most Recent Chicks | N/A | N/A | N/A |
Comments:
Geoff is observer. Conducted as part of Western Colonial Waterbird Survey (WCWS), a breeding survey of 18 species from May to July 2009 to 2011, resulting in this Atlas. Survey date given here is the only date provided.