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 |
|---|---|---|---|---|---|---|---|
| Stanislaus | Oakdale | Yes | 37.766000 | -120.847000 | Uncertain | cattails (Typha spp.) | |
| San Diego | San Pasqual | Yes | 33.090000 | -116.950000 | Uncertain | cattails (Typha spp.) | |
| Glenn | Southeast Willows #2 | Yes | 39.451600 | -122.122600 | Uncertain | willows (Salix spp.) | |
| Sutter | North Robbins | Yes | 38.943000 | -121.707000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Kern | Walker Basin | Yes | 35.409000 | -118.522000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Glenn | East Norman #2 | Yes | Uncertain | cattails (Typha spp.) | |||
| Yolo | North Knights Landing | Yes | 38.825100 | -121.717900 | Uncertain | other (note in Comments) | willows (Salix spp.) |
| Butte | West Biggs #2 | Yes | 39.412000 | -121.787000 | Uncertain | cattails (Typha spp.) | |
| Alameda | Newark | Yes | 37.520000 | -122.020000 | Uncertain | stinging nettle (Urtica dioica) | |
| Merced | Northeast Snelling | Yes | 37.545000 | -120.397000 | Uncertain | cattails (Typha spp.) | |
| Butte | West Biggs | Yes | 39.412000 | -121.862000 | Uncertain | cattails (Typha spp.) | |
| Colusa | West Biggs #4 | Yes | 39.411400 | -121.993400 | Uncertain | cattails (Typha spp.) | |
| Sonoma | Southwest Sonoma County | Yes | 38.370000 | -122.990000 | Uncertain | other (note in Comments) | |
| Stanislaus | Maize Boulevard | Yes | 37.634000 | -121.121000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| San Diego | San Luis Rey | Yes | 33.231000 | -117.325000 | Uncertain | cattails (Typha spp.) | |
| Sutter | Verona | Yes | 38.786000 | -121.618000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Butte | East Butte City | Yes | 39.464800 | -121.969800 | Uncertain | cattails (Typha spp.) | |
| Santa Barbara | Los Alamos | Yes | 34.744000 | -120.279000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Colusa | Colusa | Yes | 39.207600 | -122.010400 | Uncertain | other (note in Comments) | |
| Glenn | East Willows #2 | Yes | 39.514300 | -122.125500 | Uncertain | cattails (Typha spp.) | willows (Salix spp.) |
| Yuba | Northeast Marysville #4 | Yes | 39.230000 | -121.470000 | Uncertain | cattails (Typha spp.) | |
| Shasta | South Glenburg | Yes | 41.047000 | -121.489000 | Uncertain | Himalayan blackberry (Rubus armeniacus) | wild rose |
| Butte | North Biggs #4 | Yes | 39.440400 | -121.712900 | Uncertain | cattails (Typha spp.) | |
| Placer | Lincoln | Yes | 38.874000 | -121.297000 | Uncertain | cattails (Typha spp.) | |
| Los Angeles | Dominguez Lagoon | Yes | 33.919100 | -118.260900 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Merced | Northeast Merced | Yes | 37.334000 | -120.419000 | Uncertain | cattails (Typha spp.) | willows (Salix spp.) |
| Sonoma | Sebastopol | Yes | 38.402000 | -122.824000 | Uncertain | other (note in Comments) | |
| Colusa | West Colusa #2 | Yes | 39.207900 | -122.094200 | Uncertain | cattails (Typha spp.) | |
| Stanislaus | Turlock Reservoir | Yes | 37.609600 | -120.520200 | Uncertain | cattails (Typha spp.) | |
| San Joaquin | Southwest La Grange | Yes | 37.640000 | -120.480000 | Uncertain | cattails (Typha spp.) | |
| Glenn | Southwest Glenn | Yes | 39.510700 | -122.025500 | Uncertain | cattails (Typha spp.) | |
| Glenn | Southwest Glenn #2 | Yes | 39.472700 | -122.082800 | Uncertain | cattails (Typha spp.) | |
| Sacramento | Clay | Yes | 38.335900 | -121.159800 | Uncertain | Himalayan blackberry (Rubus armeniacus) | |
| Tehama | Gay Creek | Yes | 39.799000 | -122.196100 | Uncertain | bulrush or tule (Schoenoplectus spp.) | Himalayan blackberry (Rubus armeniacus) |
| Yolo | Davis | Yes | 38.552000 | -121.734000 | Uncertain | milk thistle (Silybum marianum) | |
| Monterey | Northeast Castroville | Yes | 36.791000 | -121.701000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Yuba | Northeast Marysville #6 | Yes | 39.163000 | -121.569000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Merced | Northwest of Merced | Yes | 37.450000 | -120.660000 | Uncertain | bull thistle (Cirsium vulgare) | |
| Kings | Southwest Corcoran | Yes | 36.044380 | -119.612532 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Colusa | Southwest Grimes | Yes | 39.026700 | -121.963500 | Uncertain | cattails (Typha spp.) | |
| Merced | Delhi | Yes | 37.433000 | -120.778000 | Uncertain | cattails (Typha spp.) | |
| Stanislaus | West Crows Landing | Yes | 37.393000 | -121.090000 | Uncertain | cattails (Typha spp.) | |
| San Diego | San Clemente | Yes | 33.440000 | -117.610000 | Uncertain | cattails (Typha spp.) | |
| Glenn | East Butte City #2 | Yes | 39.464700 | -121.895100 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Sutter | North of Sacramento | Yes | 38.860000 | -121.480000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| San Joaquin | South Manteca | Yes | 37.784000 | -121.228000 | Uncertain | cattails (Typha spp.) | |
| Glenn | Elk Creek | Yes | 39.603400 | -122.538000 | Uncertain | other (note in Comments) | |
| Colusa | Southwest Cortena | Yes | 39.209000 | -122.202000 | Uncertain | cattails (Typha spp.) | |
| Glenn | West Norman | Yes | 39.407400 | -122.210800 | Uncertain | cattails (Typha spp.) | |
| Yolo | Woodland Sugar Ponds | Yes | 38.704000 | -121.720000 | Uncertain | milk thistle (Silybum marianum) |
