west of San Luis Drive, north of forebay
| Record | Observation Date | Observer | Number of Birds | Data Source |
|---|---|---|---|---|
| Data | 2012-04-19 | Lara Sparks | 0 | County Survey 2012 (Unpublished) |
| Data | 2011-04-15 | Lara Sparks | 0 | Statewide Survey, 2011 (unpublished) |
| Data | 2008-04-25 | Lara Sparks | 0 | Statewide Survey, 2008 (unpublished) |
| Data | 2005-06-04 | John Fulton | 3500 | Statewide Survey, June 2005 (unpublished) |
| Data | 2001-04-24 | PRBO | 30 | Tricolored blackbird survey report 2001. |
| Data | 1999-04-26 | Unknown | 0 | Statewide Survey, 1999 (unpublished) |
| Data | 1999-04-20 | Unknown | 50 | Personal Observation |
| Data | 1997-04-27 | Unknown | 2000 | Statewide Survey, 1997 (unpublished) |
| Data | 1995-05-21 | Unknown | 3000 | Personal Observation |
| Data | 1995-05-19 | Unknown | 800 | Personal Observation |