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 |
|---|---|---|---|---|---|---|---|
| Placer | 1405 E Joiner Pkwy | Yes | 38.862735 | -121.286874 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| Sacramento | 16th Street at Elverta Road | No | Certain | other (note in Comments) | |||
| Stanislaus | 26 Mile Road | Yes | 37.866600 | -120.879000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Stanislaus | 28 Mile Road | No | 37.860820 | -120.828720 | Certain | other (note in Comments) | |
| Merced | 4th Ave past Rosa Rd. | Yes | 37.320663 | -120.873942 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Butte | 7 Mile Lane at Nelson Road | No | 39.547100 | -121.910600 | Certain | ||
| Colusa | Acre Farms Willows | Yes | 39.224750 | -122.099650 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Siskiyou | Adams Point., Klamath Co. OR | Yes | 42.018087 | -121.508446 | Certain | California blackberry (Rubus ursinus) | |
| Solano | Admiral Callaghan Lane | Yes | 38.131800 | -122.224100 | Certain | bulrush or tule (Schoenoplectus spp.) | cattails (Typha spp.) |
| Glenn | Afton | Yes | 39.419000 | -121.967000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Placer | Airport Road | No | 38.908800 | -121.358500 | Certain | ||
| Sacramento | Alabama Road | Yes | 38.284900 | -121.209500 | Certain | other (note in Comments) | |
| Alameda | Alameda Creek | Yes | 37.578600 | -121.877800 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Sacramento | Aleatha W Landry | No | 38.502266 | -121.261425 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Alta Mesa Road | No | 38.277500 | -121.224900 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Alta Mesa Road north of Little Acres Lane | No | 38.399146 | -121.224346 | Certain | other (note in Comments) | |
| Alameda | Altamont Creek | Yes | 37.660042 | -121.808553 | Certain | cattails (Typha spp.) | |
| Alameda | Altamont Pass Road | Yes | 37.744900 | -121.642300 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Calaveras | Altaville | Yes | 38.106467 | -120.580498 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Calaveras | Altaville - Dogtown Rd | Yes | 38.106872 | -120.577011 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Amador Avenue | No | 38.283130 | -121.267570 | Certain | other (note in Comments) | |
| Los Angeles | Amargosa Creek | No | 34.606600 | -118.260600 | Certain | ||
| Alameda | Ames and Dalton | Yes | 37.727594 | -121.732668 | Certain | cattails (Typha spp.) | |
| San Diego | Amigos Road Pond | No | 33.051600 | -116.847500 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Yolo | Anderson Pond | Yes | 38.610400 | -121.996300 | Certain | cattails (Typha spp.) | |
| Sacramento | Angle Road | No | 38.310600 | -121.212800 | Certain | cattails (Typha spp.) | |
| Napa | Anselmo Court Marsh | Yes | 38.246530 | -122.280200 | Certain | cattails (Typha spp.) | |
| San Luis Obispo | Antelope Grade Pond | Yes | 35.741531 | -120.234847 | Certain | cattails (Typha spp.) | |
| Santa Cruz | Antonelli Pond | Yes | 36.957400 | -122.059800 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Los Angeles | Apollo Park | No | 34.741612 | -118.201218 | Certain | cattails (Typha spp.) | |
| Los Angeles | Applegate Terrace | No | 34.238920 | -118.634480 | Certain | other (note in Comments) | |
| Yuba | Arboga | Yes | 39.051900 | -121.555500 | Uncertain | other (note in Comments) | |
| Shasta | Archie Brown Road | Yes | 41.061400 | -121.509300 | Certain | other (note in Comments) | other (note in Comments) |
| Merced | Arena Plains Unit #2-Merced NWR | Yes | 37.274300 | -120.720080 | Certain | cattails (Typha spp.) | |
| Merced | Arena Plains Unit, Merced NWR - Bear Creek | Yes | 37.254312 | -120.714684 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | Arena Plains Unit-Merced NWR | No | Certain | bulrush or tule (Schoenoplectus spp.) | |||
| Sacramento | Arkansas Creek | No | 38.472700 | -121.046000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Arkansas Creek Dam: North | Yes | 38.470020 | -121.060000 | Certain | willows (Salix spp.) | |
| Sacramento | Arkansas Creek Dam: South | No | 38.465400 | -121.062400 | Certain | willows (Salix spp.) | |
| Mendocino | Armstrong's Pasture, Potter Valley | Yes | 39.279590 | -123.089662 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Arno Road at Highway 99 | No | 38.320200 | -121.314300 | Certain | ||
| Glenn | Artois | Yes | 39.619600 | -122.194200 | Uncertain | willows (Salix spp.) | |
| Los Angeles | Ashtree Drive, Elizabeth Lake | No | 34.659157 | -118.381591 | Certain | cattails (Typha spp.) | |
| Tulare | Ave 176 Rd 16 | No | 36.108618 | -119.536572 | Certain | ||
| Tulare | Ave 192 Rd 44 | No | 36.137528 | -119.475460 | Certain | ||
| Los Angeles | Ave A & 35th St. West | No | 34.820286 | -118.193922 | Certain | other (note in Comments) | |
| Kings | Avenal, Highway 33 | Yes | 35.971963 | -120.115156 | Certain | wheat | mustard (Brassica spp.) |
| Tulare | Avenue 120 #1 | Yes | 35.994320 | -119.468510 | Certain | ||
| Tulare | Avenue 120 #2 | Yes | 36.006620 | -119.479950 | Certain | ||
| Tulare | Avenue 120 #3 | Yes | 35.999450 | -119.472440 | Certain |
