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 |
|---|---|---|---|---|---|---|---|
| Monterey | Hebert Road Pond | Yes | 36.763200 | -121.619400 | Certain | cattails (Typha spp.) | |
| Merced | Henry Miller Road | No | 37.106320 | -120.789380 | Certain | other (note in Comments) | |
| Sacramento | Herald | Yes | 38.296000 | -121.243000 | Uncertain | cattails (Typha spp.) | |
| San Luis Obispo | Hi Mountain Road Ranchita Estates #1 | No | 35.204899 | -120.397003 | Certain | bull thistle (Cirsium vulgare) | |
| San Luis Obispo | Hi Mountain Road Ranchita Estates #2 | No | 35.122398 | -120.242996 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Los Angeles | Highland Avenue | No | 34.586600 | -118.170500 | Certain | ||
| Lake | Highland Springs Road | Yes | 38.960787 | -122.897242 | Certain | cattails (Typha spp.) | |
| Humboldt | Highway 101 at Drake Hill Road #1 | Yes | 40.559380 | -124.146530 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Humboldt | Highway 101 at Drake Hill Road #2 | No | 40.555030 | -124.145710 | Certain | willows (Salix spp.) | |
| Sacramento | Highway 104 at Clay | Yes | 38.340300 | -121.155000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Highway 104 at Clay #2 | Yes | 38.353700 | -121.127000 | Certain | wild rose | |
| Sacramento | Highway 104 at Clay Station Road #1 | Yes | 38.335490 | -121.169170 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Highway 104 at Clay Station Road #2 | Yes | 38.337950 | -121.163030 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Highway 104 at Ivie Road | No | 38.294700 | -121.242800 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sutter | Highway 113 | Yes | 38.941900 | -121.679700 | Certain | ||
| Sutter | Highway 113 #2 | Yes | 38.929000 | -121.684700 | Certain | ||
| San Joaquin | Highway 12 at Highway 88 | Yes | 38.137100 | -121.164900 | Certain | cattails (Typha spp.) | |
| Santa Clara | Highway 130 | No | 37.369730 | -121.488470 | Certain | ||
| Merced | Highway 140 at Rosa Road | No | 37.314200 | -120.860200 | Certain | other (note in Comments) | |
| Butte | Highway 149 at Highway 70 | No | 39.588800 | -121.625000 | Certain | other (note in Comments) | |
| Merced | Highway 152 at Highway 33 | No | 37.055950 | -121.034010 | Certain | ||
| Sacramento | Highway 16 at Excelsior Road | No | 38.518300 | -121.290500 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Butte | Highway 162 at Aguas Frias Road | No | 39.463160 | -121.864690 | Certain | other (note in Comments) | |
| Glenn | Highway 162 at Willows | No | 39.528300 | -122.171300 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Merced | Highway 165 at 6th Avenue | Yes | 37.301700 | -120.851100 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | Highway 165 at 6th Avenue #2 | No | 37.300300 | -120.851600 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | Highway 165 at Highway 140 | No | 37.313330 | -120.852470 | Certain | ||
| Lake | Highway 20 at Red Hill Lane | No | 39.134190 | -122.879510 | Certain | other (note in Comments) | |
| San Benito | Highway 25 | Yes | 36.347300 | -120.957500 | Certain | cattails (Typha spp.) | mustard (Brassica spp.) |
| San Benito | Highway 25 Pond | No | 36.569900 | -121.181500 | Certain | ||
| Monterey | Highway 25: 6 Mile Marker | No | 36.236760 | -120.897390 | Certain | ||
| San Joaquin | Highway 26 at Calaveras County Line | Yes | 38.096570 | -120.942590 | Certain | ||
| Napa | Highway 29 Pond | Yes | 38.204280 | -122.257490 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Fresno | Highway 33 at Sutter Avenue | No | 36.049570 | -120.200210 | Certain | ||
| Stanislaus | Highway 4 at Calaveras County Line | No | 37.938090 | -120.780160 | Certain | other (note in Comments) | |
| Calaveras | Highway 4 at Copperopolis | No | 37.965020 | -120.668640 | Certain | other (note in Comments) | |
| San Joaquin | Highway 4 at Waverly Road | No | 37.944390 | -120.944460 | Certain | ||
| Kern | Highway 46 at Corcoran Road | Yes | 35.604600 | -119.571900 | Certain | tamarisk | cattails (Typha spp.) |
| San Luis Obispo | Highway 46 at Highway 1 | Yes | 35.542200 | -120.964900 | Certain | bulrush or tule (Schoenoplectus spp.) | mustard (Brassica spp.) |
| Kern | Highway 58 at Gaiainena Grade Road | No | 35.330270 | -119.770020 | Certain | ||
| San Luis Obispo | Highway 58 Pond | Yes | 35.367251 | -120.077755 | Certain | cattails (Typha spp.) | |
| San Luis Obispo | Highway 58 Pond #2 | Yes | 35.369490 | -120.082905 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Colusa | Highway 99 at Maxwell | Yes | 39.290784 | -122.190714 | Certain | bulrush or tule (Schoenoplectus spp.) | willows (Salix spp.) |
| Sacramento | Highway 99 at Twin Cities Road | Yes | 38.292980 | -121.311410 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Yuba | Hoffman Road | No | 39.016041 | -121.516342 | Certain | other (note in Comments) | |
| Yuba | Hoffman Road Ditch | No | 39.008300 | -121.516200 | Certain | ||
| Yuba | Hoffman Road- South | No | 39.004890 | -121.515140 | Certain | other (note in Comments) | |
| Los Angeles | Holiday Lake in Neenach | Yes | 34.785700 | -118.570800 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Merced | Hollister Land and Cattle - 01 | Yes | 37.231222 | -120.923196 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Merced | Hollister Land and Cattle - 02 | Yes | 37.231238 | -120.929083 | Certain | bulrush or tule (Schoenoplectus spp.) | willows (Salix spp.) |
