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
Kern KVLI radio tower Yes 35.632500 -118.477220 Certain stinging nettle (Urtica dioica)
Stanislaus La Grange Yes 37.661000 -120.455000 Uncertain cattails (Typha 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)
Orange Laguna Niguel Regional Park-Central Island Yes 33.546420 -117.704740 Certain cattails (Typha spp.) Giant reed (Arundo donax)
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.)
Riverside Lake Hemet Yes 33.667559 -116.669902 Certain bulrush or tule (Schoenoplectus spp.)
San Diego Lake Henshaw Northwest Yes 33.257900 -116.746170 Certain other (note in Comments) willows (Salix spp.)
Kern Lake Isabella Yes 35.665100 -118.347500 Certain cattails (Typha spp.) stinging nettle (Urtica dioica)
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 1 Yes 33.496000 -116.831000 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.)
Crook LaMonta Marsh Yes 44.369700 -120.886300 Certain cattails (Typha spp.)
Los Angeles Landfill/Aqueduct Site 1 Yes 34.575238 -118.180468 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Los Angeles Landfill/Aqueduct Site 2 Yes 34.571203 -118.168250 Certain cattails (Typha spp.)
Santa Cruz Last Chance Pond Yes 37.088460 -122.258700 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.)
Los Angeles Leona Valley Pond Yes 34.601060 -118.262410 Certain willows (Salix spp.)
San Joaquin Lewallen Ranch Yes 38.057050 -121.074800 Certain Himalayan blackberry (Rubus armeniacus) cattails (Typha spp.)
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 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-South Yes 36.779710 -120.799100 Certain cattails (Typha spp.) willows (Salix spp.)
Fresno Little Panoche Reservoir-Southwest Yes 36.779700 -120.804600 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Fresno Little Panoche WA Yes 36.773020 -120.815060 Certain other (note in Comments)
Shasta Little Tule River Yes 41.069000 -121.472100 Certain stinging nettle (Urtica dioica)
Alameda Livermore Yes 37.682000 -121.768000 Uncertain other (note in Comments)
Merced Livingston Yes 37.385000 -120.723000 Uncertain cattails (Typha spp.)
Monterey Locke Padden Pond Yes 36.689400 -121.801150 Certain cattails (Typha spp.)
Shasta Locust Road Yes 40.428400 -122.273510 Certain other (note in Comments)
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