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 |
|---|---|---|---|---|---|---|---|
| Merced | Los Banos Wildlife Area 64-Slough | No | 37.162400 | -120.795600 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Kern | Tehachapi #2 - Cub Lake | No | 35.161400 | -118.644997 | Certain | other (note in Comments) | |
| Merced | Nunes & Sons Dairy | No | 37.313500 | -120.895000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Alta Mesa Road north of Little Acres Lane | No | 38.399146 | -121.224346 | Certain | other (note in Comments) | |
| Sacramento | Florin Road Railroad Tracks | No | 38.494760 | -121.357130 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Colusa | Colusa NWR P1 | No | 39.137100 | -122.039700 | Certain | other (note in Comments) | |
| Riverside | Prado Lake Dam | No | 33.892410 | -117.640740 | Certain | cattails (Typha spp.) | |
| Sacramento | River Road at Tule Canal | No | 38.675900 | -121.649100 | Certain | ||
| Fresno | Highway 33 at Sutter Avenue | No | 36.049570 | -120.200210 | Certain | ||
| Sacramento | Woods Road | No | 38.358100 | -121.243700 | Certain | ||
| Modoc | Modoc | No | 41.343180 | -120.566540 | Certain | other (note in Comments) | |
| San Benito | Dry Lake | No | 36.479760 | -121.073720 | Certain | ||
| Sacramento | Dry Creek at Elliot Road | No | 38.255460 | -121.171920 | Certain | ||
| Los Angeles | Elizabeth Lake | No | 34.663900 | -118.390900 | Certain | ||
| Yuba | Hoffman Road Ditch | No | 39.008300 | -121.516200 | Certain | ||
| Humboldt | Drake Hill Road | No | 40.563100 | -124.154600 | Certain | ||
| Calaveras | Rock Creek Road at Rock Creek | No | 38.014920 | -120.824950 | Certain | Himalayan blackberry (Rubus armeniacus) | other (note in Comments) |
| Siskiyou | Lower Klamath NWR-Unit 11A1/11B | No | 41.933370 | -121.703620 | Certain | stinging nettle (Urtica dioica) | |
| Merced | Interstate 5 at Los Banos Creek | No | Certain | ||||
| Colusa | Pyle's Ranch | No | 38.945890 | -122.040580 | Certain | cattails (Typha spp.) | |
| Yuba | Flying Rodeo | No | 39.062582 | -121.514153 | Certain | other (note in Comments) | |
| Monterey | Elkhorn Slough | No | 36.859000 | -121.743000 | Uncertain | other (note in Comments) | |
| Tulare | Ave 176 Rd 16 | No | 36.108618 | -119.536572 | Certain | ||
| Merced | Big Bottom Dairy | No | 37.299900 | -120.883300 | Certain | ||
| Solano | Collinsville Road #1 | No | 38.106000 | -121.861560 | Certain | ||
| Los Angeles | Gorman Post Road #1 | No | 34.796537 | -118.856664 | Certain | mustard (Brassica spp.) | |
| Sacramento | Alta Mesa Road | No | 38.277500 | -121.224900 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Modoc | Tule Lake NWR- Southwest Frey's Island | No | 41.851190 | -121.429780 | Certain | stinging nettle (Urtica dioica) | |
| Merced | Green House Road | No | 37.225900 | -120.693300 | Certain | stinging nettle (Urtica dioica) | |
| Kern | Tehachapi #7 - Horse Thief | No | 35.087799 | -118.642998 | Certain | other (note in Comments) | |
| Orange | Village Pond Park | No | 33.625900 | -117.707300 | Certain | ||
| San Benito | Calistoga Drive | No | 36.828850 | -121.369450 | Certain | ||
| Siskiyou | Lower Klamath NWR-Unit 12 #1 | No | 41.918830 | -121.645540 | Certain | ||
| San Joaquin | Escalon Bellota Road | No | 38.028100 | -121.014900 | Certain | other (note in Comments) | |
| Glenn | Sacramento River Overflow | No | 39.464150 | -121.925400 | Certain | willows (Salix spp.) | |
| Kern | Panama Road at Comanche Drive | No | 35.263400 | -118.838800 | Certain | other (note in Comments) | |
| Stanislaus | Milton Road at Highway 4 | No | 37.930100 | -120.843900 | Certain | other (note in Comments) | |
| Yolo | Road 29 at Road 95 | No | 38.594200 | -121.863200 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Colusa | Delevan Road at Four Mile Road | No | 39.322000 | -122.110100 | Certain | ||
| San Diego | Mesa Grande Rd X Ponchetti Rd (non colony) | No | 33.164101 | -116.735001 | Certain | bull thistle (Cirsium vulgare) | |
| Merced | Merced NWR: Honker Lake | No | 37.198120 | -120.606480 | Certain | mustard (Brassica spp.) | milk thistle (Silybum marianum) |
| Kern | Klipstein Canyon Road at Cerro Noroeste Road | No | 34.953620 | -119.405840 | Certain | ||
| Los Angeles | Ashtree Drive, Elizabeth Lake | No | 34.659157 | -118.381591 | Certain | cattails (Typha spp.) | |
| Santa Barbara | Lompoc #2 | No | 34.651299 | -120.311996 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Stanislaus | Wamble and Fogarty | No | 37.756703 | -120.772662 | Certain | other (note in Comments) | |
| Kern | Klipstein Canyon Road: Center | No | 34.986400 | -119.393700 | Certain | other (note in Comments) | |
| San Diego | Viejas Boulevard | No | 32.858003 | -116.614530 | Certain | ||
| Merced | Stair Step | No | 37.039800 | -120.968300 | Certain | ||
| Madera | Road 400 | No | 37.078805 | -119.894228 | Certain | milk thistle (Silybum marianum) | |
| Merced | Volta Lake Marsh Southwest | No | 37.096410 | -120.948570 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
