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 |
|---|---|---|---|---|---|---|---|
| Napa | Anselmo Court Marsh | Yes | 38.246530 | -122.280200 | Certain | cattails (Typha spp.) | |
| Contra Costa | Camp Parks Reserve Forces Training Area | Yes | 37.725447 | -121.897860 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Sacramento | Highway 104 at Clay Station Road #2 | Yes | 38.337950 | -121.163030 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Colusa | Lurline Avenue South | No | 39.212700 | -122.084300 | Certain | Giant reed (Arundo donax) | |
| Alameda | Broadmoor Pond | Yes | 37.723190 | -121.723400 | Certain | bull thistle (Cirsium vulgare) | |
| Kern | Renfro Road | No | 35.353100 | -119.167390 | Certain | ||
| Solano | Rio Dixon Road | Yes | 38.255436 | -121.804669 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Butte | Cottonwood Road #1 | No | Certain | willows (Salix spp.) | |||
| Merced | Kelsey Reservoir - Kelsey Ranch | Yes | 37.538290 | -120.353487 | Certain | milk thistle (Silybum marianum) | |
| Sacramento | Willow Creek at Blue Ravine Road | No | 38.660970 | -121.157290 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Alameda | Sheridan Road | No | 37.553883 | -121.882324 | Certain | other (note in Comments) | |
| Stanislaus | Christman Levee IV | Yes | 37.626300 | -121.182980 | Certain | mustard (Brassica spp.) | milk thistle (Silybum marianum) |
| Kern | Sierra Way Pond | Yes | 35.679800 | -118.383900 | Certain | cattails (Typha spp.) | |
| Stanislaus | 26 Mile Road | Yes | 37.866600 | -120.879000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | I-5 North ROW | Yes | 37.184500 | -121.067100 | Certain | milk thistle (Silybum marianum) | |
| Sacramento | Borden Road | No | 38.291300 | -121.244700 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Stanislaus | Pete Miller | Yes | 37.256976 | -121.097660 | Certain | mustard (Brassica spp.) | other (note in Comments) |
| Siskiyou | Lower Klamath NWR-Unit 12C | Yes | 41.912120 | -121.644490 | Certain | stinging nettle (Urtica dioica) | |
| Sacramento | Arkansas Creek Dam: South | No | 38.465400 | -121.062400 | Certain | willows (Salix spp.) | |
| Kern | Wind Wolves: Sag Pond | Yes | 34.946600 | -119.166000 | Certain | cattails (Typha spp.) | |
| San Joaquin | Durham Ferry Road | Yes | 37.664700 | -121.287100 | Certain | cattails (Typha spp.) | |
| Kern | Klipstein Canyon Road: South | Yes | 34.972500 | -119.412000 | Certain | stinging nettle (Urtica dioica) | |
| Kern | Tehachapi #13 - Meadowbrook Spring | No | 35.138599 | -118.477997 | Certain | other (note in Comments) | |
| San Benito | Lewis Creek at Highway 25 | No | 36.301000 | -120.929200 | Certain | ||
| Kern | West Kern WD No. 2 | Yes | 35.300300 | -119.274000 | Certain | stinging nettle (Urtica dioica) | |
| Merced | O'Neill Forebay | Yes | 37.079300 | -121.023000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| San Luis Obispo | Cuesta College | Yes | 35.333500 | -120.736900 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Placer | Moore Road #1 | No | Certain | other (note in Comments) | |||
| San Luis Obispo | Corbett Canyon | Yes | 35.197922 | -120.602932 | Certain | bulrush or tule (Schoenoplectus spp.) | willows (Salix spp.) |
| San Diego | Chihuahua Creek at Highway 79 | No | 33.396650 | -116.799210 | Certain | ||
| Orange | Whittier Narrows - Legg Lake | No | 34.035930 | -118.063502 | Certain | other (note in Comments) | |
| Calaveras | Highway 4 at Copperopolis | No | 37.965020 | -120.668640 | Certain | other (note in Comments) | |
| Sacramento | Florin Road | Yes | 38.498400 | -121.266620 | Certain | milk thistle (Silybum marianum) | |
| Sacramento | North Stone Lake | Yes | 38.391900 | -121.498300 | Certain | Himalayan blackberry (Rubus armeniacus) | bulrush or tule (Schoenoplectus spp.) |
| Monterey | Locke Padden Pond | Yes | 36.689400 | -121.801150 | Certain | cattails (Typha spp.) | |
| Sacramento | 16th Street at Elverta Road | No | Certain | other (note in Comments) | |||
| Merced | South of Childs | Yes | 37.285170 | -120.255340 | Certain | milk thistle (Silybum marianum) | |
| San Bernardino | Gravel Pit Newberry Springs | Yes | 34.833285 | -116.695447 | Certain | cattails (Typha spp.) | |
| Fresno | Little Panoche Reservoir- Parking Lot | No | 36.785300 | -120.799000 | Certain | ||
| San Luis Obispo | Pinole Spring | Yes | 35.498098 | -120.071876 | Certain | cattails (Typha spp.) | |
| Tuolumne | New Melones Lake Dam | Yes | 37.945970 | -120.540350 | Certain | other (note in Comments) | |
| Kings | Utica Avenue at Interstate 5 | Yes | 35.884000 | -119.853400 | Certain | lettuce (Lactuca spp.) | |
| Yuba | Beale Main Gate | Yes | 39.130070 | -121.445400 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Placer | Airport Road | No | 38.908800 | -121.358500 | Certain | ||
| San Luis Obispo | Turri Road, Morro Bay | No | 35.327099 | -120.806999 | Certain | bull thistle (Cirsium vulgare) | |
| Fresno | Sutter Avenue | No | 36.091500 | -120.212100 | Certain | ||
| Kern | KRP - Prince Pond | Yes | 35.668471 | -118.327131 | Certain | cattails (Typha spp.) | stinging nettle (Urtica dioica) |
| Colusa | Delevan T42.2 | Yes | 39.276660 | -122.113240 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| San Diego | Portero | No | 32.609285 | -116.627104 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Kings | Kansas Avenue | Yes | 36.212000 | -119.547900 | Certain | other (note in Comments) |
