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 | La Grange | Yes | 37.661000 | -120.455000 | Uncertain | cattails (Typha spp.) | |
| San Diego | La Posta | No | 32.731985 | -116.413965 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Orange | Laguna Beach | Yes | 33.541000 | -117.759000 | Uncertain | cattails (Typha spp.) | |
| Sacramento | Laguna Creek at Clay Station Road | Yes | 38.354700 | -121.179500 | Certain | willows (Salix spp.) | |
| Sacramento | Laguna Creek at Eagles Nest Road | Yes | 38.483900 | -121.270000 | Certain | other (note in Comments) | Himalayan blackberry (Rubus armeniacus) |
| Sacramento | Laguna Creek at Franklin Boulevard | Yes | 38.441890 | -121.435620 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Santa Cruz | Laguna de las Trancas | Yes | 37.051800 | -122.153100 | Certain | bulrush or tule (Schoenoplectus spp.) | cattails (Typha spp.) |
| Orange | Laguna Niguel Regional Park-Central Island | Yes | 33.546420 | -117.704740 | Certain | cattails (Typha spp.) | Giant reed (Arundo donax) |
| Monterey | Laguna Seca | Yes | Certain | willows (Salix spp.) | bull thistle (Cirsium vulgare) | ||
| Monterey | Laguna Seca | Yes | 36.571400 | -121.768000 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Monterey | Laguna Seca Raceway | Yes | 36.583800 | -121.755670 | Certain | cattails (Typha spp.) | |
| Santa Clara | Lake Cunningham Park | Yes | 37.337100 | -121.815600 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Solano | Lake Herman | Yes | 38.092900 | -122.151100 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Los Angeles | Lake Hughes | No | 34.674300 | -118.445500 | Certain | ||
| Kern | Lake Isabella | Yes | 35.665100 | -118.347500 | Certain | cattails (Typha spp.) | stinging nettle (Urtica dioica) |
| Kern | Lake Isabella Boulevard | No | 35.619240 | -118.479320 | Certain | cattails (Typha spp.) | |
| Kern | Lake Jean | Yes | 35.125260 | -118.417400 | Certain | willows (Salix spp.) | |
| San Diego | Lake Murray | Yes | 32.785873 | -117.041869 | Certain | cattails (Typha spp.) | |
| Riverside | Lake Norconian | Yes | 33.922000 | -117.573000 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Ventura | Lake Sherwood | Yes | 34.137500 | -118.861100 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Riverside | Lake Skinner | Yes | 33.582877 | -117.045078 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Tulare | Lake Success | Yes | 36.101000 | -118.911700 | Certain | stinging nettle (Urtica dioica) | |
| Riverside | Lake Vista Drive | Yes | Certain | wild rose | stinging nettle (Urtica dioica) | ||
| Lake | Lakeport | Yes | 39.043400 | -122.923800 | Uncertain | cattails (Typha spp.) | |
| Riverside | Lakeview Mountains | Yes | 33.821371 | -117.049370 | Certain | mallow (Malva sp.) | stinging nettle (Urtica dioica) |
| Sonoma | Lakeville Road | Yes | 38.148500 | -122.490800 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Los Angeles | Lakewood County Club | No | 33.834710 | -118.149750 | Certain | ||
| Santa Cruz | Last Chance Pond | Yes | 37.088600 | -122.258300 | Certain | bulrush or tule (Schoenoplectus spp.) | other (note in Comments) |
| Sacramento | Latrobe Road | Yes | 38.517700 | -121.119500 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Alameda | Laughlin Road | Yes | 37.750256 | -121.708646 | Certain | cattails (Typha spp.) | |
| Alameda | Laughlin Road at Lake Road | Yes | 37.734020 | -121.713900 | Certain | other (note in Comments) | other (note in Comments) |
| Contra Costa | Lawrence Road Pond | Yes | 37.784300 | -121.902500 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Lassen | Leavitt Correctional Center | Yes | 40.398200 | -120.492200 | Certain | cattails (Typha spp.) | |
| Kings | Lemoore NAS | No | 36.332380 | -119.936500 | Certain | other (note in Comments) | |
| Los Angeles | Leona Valley Pond | Yes | 34.601060 | -118.262410 | Certain | willows (Salix spp.) | |
| Los Angeles | Leona Valley School Adjacent | No | 34.614773 | -118.289537 | Certain | willows (Salix spp.) | |
| San Joaquin | Lewallen Ranch | Yes | 38.057050 | -121.074800 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| San Benito | Lewis Creek at Highway 25 | No | 36.301000 | -120.929200 | Certain | ||
| San Joaquin | Liberty Road at Dry Creek Road | No | 38.237310 | -121.134630 | Certain | ||
| San Joaquin | Liberty Road at Highway 88 | No | 38.233790 | -121.050160 | Certain | ||
| San Joaquin | Liberty Road at Jack Tone Road | Yes | 38.236890 | -121.155400 | Certain | other (note in Comments) | |
| San Joaquin | Liberty Road at Sowles Road | Yes | 38.235200 | -121.189100 | Certain | other (note in Comments) | |
| Placer | Lincoln | Yes | 38.874000 | -121.297000 | Uncertain | cattails (Typha spp.) | |
| San Diego | Lindo Lake | Yes | 32.857400 | -116.915100 | Certain | cattails (Typha spp.) | |
| Placer | Little Ben | Yes | 38.956172 | -121.256855 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Butte | Little Dry Creek #2 | Yes | 39.388100 | -121.888100 | Certain | willows (Salix spp.) | cattails (Typha spp.) |
| Fresno | Little Panoche Creek | No | 36.797700 | -120.749800 | Certain | cattails (Typha spp.) | |
| Fresno | Little Panoche Reservoir | Yes | 36.784300 | -120.799600 | Certain | bull thistle (Cirsium vulgare) | |
| Fresno | Little Panoche Reservoir Dam | Yes | 36.783700 | -120.795000 | Certain | cattails (Typha spp.) | |
| Fresno | Little Panoche Reservoir- Parking Lot | No | 36.785300 | -120.799000 | Certain |
