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 |
|---|---|---|---|---|---|---|---|
| San Benito | Frye Lane | Yes | Certain | bulrush or tule (Schoenoplectus spp.) | cattails (Typha spp.) | ||
| Monterey | Ft. Ord - Oil Well Road | Yes | 36.601100 | -121.717500 | Certain | stinging nettle (Urtica dioica) | |
| Stanislaus | Fulkerth Road at Vivian Road | Yes | 37.507400 | -121.049200 | Certain | cattails (Typha spp.) | |
| Stanislaus | Fulkerth Road at Vivian Road #2 | Yes | 37.509400 | -121.049100 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Riverside | Garner Valley | Yes | 33.667559 | -116.669902 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Monterey | Gatehouse Pond | Yes | 36.441460 | -121.793270 | Certain | cattails (Typha spp.) | |
| Tehama | Gay Creek | Yes | 39.799000 | -122.196100 | Uncertain | bulrush or tule (Schoenoplectus spp.) | Himalayan blackberry (Rubus armeniacus) |
| Tehama | Gay Creek #2 | Yes | 39.798900 | -122.204500 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Kern | General Beale Road | Yes | 35.281900 | -118.753100 | Certain | other (note in Comments) | other (note in Comments) |
| San Joaquin | Gilmore Road | No | 38.042610 | -120.992350 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sutter | Gilsizer Slough | Yes | 39.077800 | -121.636400 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Sutter | Gilsizer Slough at Tudor Road | Yes | 39.005220 | -121.701570 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Placer | Gladding Hwy. 65 | Yes | 38.917783 | -121.321013 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Placer | Gladding Road | No | 38.981700 | -121.293200 | Certain | ||
| Placer | Gleason Ranch Sunset Blvd. West | Yes | 38.818311 | -121.407981 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Yolo | Glide Tule Ranch | Yes | 38.479900 | -121.632140 | Certain | bulrush or tule (Schoenoplectus spp.) | other (note in Comments) |
| Yolo | Glide Tule Ranch #2 | Yes | 38.470951 | -121.613250 | Certain | other (note in Comments) | |
| Tulare | Globe Drive Pond | Yes | 36.097799 | -118.811903 | Certain | cattails (Typha spp.) | |
| El Dorado | Gold Hill Road | No | 38.763900 | -120.862000 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| Santa Barbara | Goleta Slough | Yes | 34.416900 | -119.840300 | Certain | other (note in Comments) | |
| Yolo | Gordon Slough | No | 38.691400 | -121.875000 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| Los Angeles | Gorman Post Road #1 | No | 34.796537 | -118.856664 | Certain | mustard (Brassica spp.) | |
| Los Angeles | Gorman Post Road #2 | No | 34.784090 | -118.812220 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| San Benito | Granite Rock Pond | No | 36.813600 | -121.384400 | Certain | ||
| San Luis Obispo | Grant Lake Intermittent Pond | Yes | 35.599305 | -120.153029 | Certain | cattails (Typha spp.) | |
| Sacramento | Grant Line Road at Bond Road | Yes | 38.411600 | -121.313200 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Grant Line Road at Bradshaw Road | No | 38.399800 | -121.334500 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| San Bernardino | Gravel Pit Newberry Springs | Yes | 34.833285 | -116.695447 | Certain | cattails (Typha spp.) | |
| Merced | Green House Road | No | 37.225900 | -120.693300 | Certain | stinging nettle (Urtica dioica) | |
| Sacramento | Green Road | Yes | 38.423990 | -121.251000 | Certain | cattails (Typha spp.) | |
| Santa Cruz | Greyhound Rock Pond | Yes | 37.087800 | -122.259100 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Butte | Gridley | Yes | 39.363300 | -121.697600 | Uncertain | other (note in Comments) | |
| Butte | Gridley Road at Pennington Road | No | 39.366400 | -121.794200 | Certain | milk thistle (Silybum marianum) | |
| Santa Barbara | Guadalupe Slough | No | 34.968201 | -120.570000 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| San Diego | Guajome Lake | No | 33.246000 | -117.276900 | Certain | ||
| Merced | Gun Club Road | Yes | 37.231200 | -120.958000 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Merced | Gun Club Road #2 | Yes | 37.231300 | -120.940000 | Certain | cattails (Typha spp.) | |
| Merced | Gun Club Road and Azevedo Road | Yes | 37.230055 | -120.973463 | Certain | triticale | wheat |
| Merced | Gustine Overpass | Yes | 37.246900 | -121.086000 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Kings | Hacienda West | Yes | 35.818361 | -119.720099 | Certain | other (note in Comments) | |
| Santa Clara | Halls Valley | Yes | 37.310000 | -121.690000 | Uncertain | other (note in Comments) | |
| Yuba | Hammonton | Yes | 39.192800 | -121.419600 | Uncertain | other (note in Comments) | |
| San Joaquin | Hansen Road | No | 37.761800 | -121.521200 | Certain | other (note in Comments) | |
| Santa Cruz | Hanson Slough | Yes | 36.903700 | -121.791600 | Certain | cattails (Typha spp.) | |
| Colusa | Harbison Road | Yes | 39.247400 | -122.092900 | Certain | cattails (Typha spp.) | |
| Colusa | Harbison Road at Jameson Road | No | 39.248300 | -122.084200 | Certain | cattails (Typha spp.) | |
| Santa Cruz | Harkins Slough | No | 36.915200 | -121.802600 | Certain | other (note in Comments) | |
| Sacramento | Hauschildt Road | No | 38.300000 | -121.289000 | Certain | ||
| Solano | Hay Road Landfill | Yes | 38.306500 | -121.825400 | Certain | cattails (Typha spp.) | |
| Sacramento | Haycock Street | Yes | 38.499600 | -121.108800 | Certain | cattails (Typha spp.) | milk thistle (Silybum marianum) |
