Colony Locations (Public)
This table contains publicly-accessible records of locations of tricolored blackbird colonies and aggregations. These may have occurred on either public or private property.
If you have not obtained rights of access to locations on private property, please view colonies from public (e.g., county) roads.
Fields provided are county, accepted name of location, whether the location is a known colony location, geographic coordinates, the confidence in the location coordinates, and the primary and secondary substrates types (the types of vegetation present).
Download Data: Excel Spreadsheet (.xls), Comma Separated Values (.csv)
| County | Name |
Colony |
Latitude | Longitude | Location Confidence | Primary Substrate | Secondary Substrate |
|---|---|---|---|---|---|---|---|
| Merced | Northeast Snelling #2 | Yes | 37.573000 | -120.380000 | Uncertain | cattails (Typha spp.) | |
| Yolo | Anderson Pond | Yes | 38.610400 | -121.996300 | Certain | cattails (Typha spp.) | |
| Yolo | Southwest Sacramento | Yes | 38.511000 | -121.564000 | Uncertain | cattails (Typha spp.) | |
| Colusa | Maxwell Sites Road | Yes | 39.291890 | -122.309720 | Certain | other (note in Comments) | other (note in Comments) |
| Shasta | Horr Pond South | Yes | 41.087100 | -121.451900 | Certain | stinging nettle (Urtica dioica) | |
| Santa Cruz | Neary's Lagoon | Yes | 36.963000 | -122.030500 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Colusa | Delevan Blind 4 | Yes | 39.326992 | -122.114612 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Madera | Road 209 | Yes | 37.063680 | -119.792960 | Certain | milk thistle (Silybum marianum) | |
| Glenn | Southeast Willows | Yes | 39.437500 | -122.088300 | Uncertain | cattails (Typha spp.) | |
| Calaveras | South Petersburgh Road | Yes | 38.188400 | -120.796700 | Certain | cattails (Typha spp.) | Himalayan blackberry (Rubus armeniacus) |
| Kern | California City Central Park | Yes | 35.127400 | -117.945400 | Certain | cattails (Typha spp.) | |
| Fresno | Shaw Avenue at Academy Avenue | Yes | 36.809010 | -119.566934 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Riverside | Lakeview Mountains | Yes | 33.821371 | -117.049370 | Certain | mallow (Malva sp.) | stinging nettle (Urtica dioica) |
| Kern | Bitter Creek N.W.R. - Spanish Spring | Yes | 34.959700 | -119.362000 | Certain | stinging nettle (Urtica dioica) | willows (Salix spp.) |
| Yuba | South Marysville #3 | Yes | 39.139000 | -121.583000 | Uncertain | cattails (Typha spp.) | |
| Tulare | Avenue 120 #1 | Yes | 35.994320 | -119.468510 | Certain | ||
| Siskiyou | Tule Lake NWR- Southeast | Yes | 41.830600 | -121.435400 | Certain | stinging nettle (Urtica dioica) | |
| Yolo | Winters Sewage East | Yes | 38.542100 | -121.985400 | Certain | cattails (Typha spp.) | |
| Glenn | Willows | Yes | 39.514100 | -122.200600 | Uncertain | cattails (Typha spp.) | |
| Sacramento | Iron Point Road | Yes | 38.646300 | -121.104400 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Mendocino | Westside Road Potter Valley | Yes | 39.301908 | -123.108485 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Tavernor Road at Apricot Lane | Yes | 38.434500 | -121.191900 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Amador | Dufresne Pond | Yes | 38.292667 | -120.817903 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Sacramento | Southwest Scott Road | Yes | 38.529000 | -121.144000 | Uncertain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | Salt Slough at Highway 165 | Yes | 37.235430 | -120.858090 | Certain | cattails (Typha spp.) | |
| Riverside | Lake Skinner | Yes | 33.582877 | -117.045078 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Colusa | Southwest Princeton | Yes | 39.395000 | -122.021000 | Uncertain | cattails (Typha spp.) | |
| Sacramento | Laguna Creek at Franklin Boulevard | Yes | 38.441890 | -121.435620 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Los Angeles | El Dorado Nature Center | Yes | 33.805100 | -118.087000 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Riverside | San Jacinto WA: Potrero Unit | Yes | 33.863050 | -116.948300 | Certain | ||
| Stanislaus | Patterson Road | Yes | 37.736300 | -120.878200 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Stanislaus | Oakdale | Yes | 37.766000 | -120.847000 | Uncertain | cattails (Typha spp.) | |
| Yolo | Yolo Bypass W.A. Buttonbush | Yes | 38.471152 | -121.613500 | Certain | other (note in Comments) | |
| San Diego | San Pasqual | Yes | 33.090000 | -116.950000 | Uncertain | cattails (Typha spp.) | |
| Glenn | Northeast Norman | Yes | 39.434700 | -122.149000 | Uncertain | cattails (Typha spp.) | |
| Riverside | Theodore Street at Dracaea Avenue | Yes | 33.930100 | -117.143320 | Certain | wheat | mustard (Brassica spp.) |
| Alameda | Shadow Cliffs Lake | Yes | 37.665614 | -121.831512 | Certain | cattails (Typha spp.) | |
| Stanislaus | Christman Levee II | Yes | 37.621790 | -121.182590 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Napa | Huichica Creek Pond | Yes | 38.211883 | -122.346411 | Certain | cattails (Typha spp.) | |
| Monterey | Northwest Salinas | Yes | 36.725000 | -121.711000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Kings | Utica Avenue Pond | Yes | 35.875990 | -119.817040 | Certain | other (note in Comments) | |
| Santa Barbara | Cuyama River Bridge | Yes | 34.933840 | -119.598900 | Certain | other (note in Comments) | |
| Alameda | Coyote Hills Regional Park- Dumbarton | Yes | 37.542672 | -122.086945 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Merced | Frog Pond | Yes | 36.946700 | -120.733500 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Merced | Dos Palos | Yes | 36.985000 | -120.635000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | cattails (Typha spp.) |
| Sutter | North Robbins | Yes | 38.943000 | -121.707000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Riverside | Garner Valley | Yes | 33.667559 | -116.669902 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| San Benito | Bitterwater Creek | Yes | 36.327980 | -120.934550 | Certain | ||
| Kern | Kern Water Bank Nettles | Yes | Certain | stinging nettle (Urtica dioica) | mesquite (Prosopis spp.) | ||
| Colusa | Northeast Williams | Yes | 39.193300 | -122.085300 | Uncertain | cattails (Typha spp.) |
