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 |
|---|---|---|---|---|---|---|---|
| Madera | Avenue 18 1/2 | No | 37.016770 | -120.254800 | Certain | other (note in Comments) | |
| Madera | Avenue 7 at Road 16 | Yes | 36.850900 | -120.237100 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Los Angeles | Avenue F Dairy | Yes | 34.750600 | -117.963400 | Certain | wheat | |
| Napa | Aviation Way Pond | Yes | 38.219462 | -122.260398 | Certain | bulrush or tule (Schoenoplectus spp.) | willows (Salix spp.) |
| Sacramento | Badger Creek Lane Pond | No | 38.391000 | -121.246000 | Certain | other (note in Comments) | |
| San Diego | Barrett Junction | Yes | 32.611544 | -116.713514 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Shasta | Basin Hollow Creek - 2008 | Yes | 40.580000 | -122.100000 | Certain | Himalayan blackberry (Rubus armeniacus) | bulrush or tule (Schoenoplectus spp.) |
| Madera | Bates Station Road | Yes | 37.077510 | -119.864170 | Certain | milk thistle (Silybum marianum) | |
| Yuba | Beale A.F.B.: Lower Blackwelder Lake | Yes | 39.132300 | -121.383300 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Yuba | Beale A.F.B.: Miller Lake | Yes | 39.168400 | -121.402100 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Yuba | Beale AFB | No | 39.138100 | -121.446100 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Yuba | Beale AFB-Doolittle Drive | No | 39.137500 | -121.402400 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| Yuba | Beale Main Gate | Yes | 39.130070 | -121.445400 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Merced | Bear Creek #1 | No | 37.249900 | -120.783300 | Certain | ||
| Merced | Bear Creek #2 | No | 37.254800 | -120.701900 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Kern | Bear Mountain Blvd and Adobe | Yes | 35.214385 | -118.965797 | Certain | triticale | mustard (Brassica spp.) |
| Santa Barbara | Bell Road Pond | Yes | 34.933100 | -119.649000 | Certain | cattails (Typha spp.) | wheat |
| Yuba | Best Slough | Yes | 39.026500 | -121.507400 | Certain | cattails (Typha spp.) | Himalayan blackberry (Rubus armeniacus) |
| Sacramento | Bethany Slavic Church | Yes | 38.525900 | -121.331100 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| San Benito | Bettencourt Dairy | No | 36.982900 | -121.468800 | Certain | ||
| Merced | Big Bottom Dairy | No | 37.299900 | -120.883300 | Certain | ||
| Shasta | Big Lake | Yes | 41.108000 | -121.396000 | Certain | other (note in Comments) | |
| Butte | Biggs | Yes | 39.412500 | -121.713000 | Uncertain | cattails (Typha spp.) | |
| Solano | Birds Landing Road | No | 38.137600 | -121.903900 | Certain | ||
| Kern | Bitter Creek N.W.R. - Bonnie's Pond | Yes | 34.935130 | -119.415900 | Certain | bull thistle (Cirsium vulgare) | |
| Kern | Bitter Creek N.W.R. - Kristofik Nettles | Yes | 34.939200 | -119.392000 | Certain | stinging nettle (Urtica dioica) | |
| Kern | Bitter Creek N.W.R. - Spanish Spring | Yes | 34.959700 | -119.362000 | Certain | stinging nettle (Urtica dioica) | willows (Salix spp.) |
| San Benito | Bitterwater Creek | Yes | 36.327980 | -120.934550 | Certain | ||
| San Luis Obispo | Bitterwater Road | No | 35.564500 | -120.116300 | Certain | ||
| Tehama | Black Butte Road | No | 39.917880 | -122.279160 | Certain | ||
| San Diego | Blackcanyon Road Ranch Pond | Yes | 33.182387 | -116.781921 | Certain | cattails (Typha spp.) | |
| Tulare | BLM Trail Area Alpaugh | No | 35.873368 | -119.496703 | Certain | ||
| San Diego | Bloomdale Ranch Road | No | Certain | Himalayan blackberry (Rubus armeniacus) | |||
| Kern | Bob Powers Gateway Preserve | Yes | 35.625871 | -118.478022 | Certain | stinging nettle (Urtica dioica) | |
| San Diego | Boden Canyon Ecological Reserve Pond | Yes | 33.115978 | -116.894349 | Certain | cattails (Typha spp.) | |
| Sacramento | Boessow Road | Yes | 38.255910 | -121.215250 | Certain | Himalayan blackberry (Rubus armeniacus) | milk thistle (Silybum marianum) |
| Contra Costa | Bollinger Canyon Road Pond | Yes | 37.750300 | -121.908100 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Sacramento | Borden Road | No | 38.291300 | -121.244700 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| San Diego | Borrego Springs Country Club | Yes | 33.242900 | -116.357000 | Certain | cattails (Typha spp.) | |
| Merced | Bose Road | No | 37.291200 | -120.819100 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Monterey | Bradley Road | Yes | 35.861200 | -120.779400 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Monterey | Bradley Road 2 | Yes | 35.861300 | -120.786490 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Sacramento | Bradshaw Christian | No | 38.456781 | -121.343350 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Bradshaw Road at Elder Creek Road | No | 38.507200 | -121.335000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Marin | Brazil Ranch | Yes | 38.243000 | -122.943000 | Uncertain | Himalayan blackberry (Rubus armeniacus) | other (note in Comments) |
| Placer | Brewer Road #1 | No | 38.836700 | -121.443000 | Certain | ||
| Placer | Brewer Road #2 | No | 38.876100 | -121.458300 | Certain | ||
| Yolo | Brian Stucker Pond | Yes | 38.594555 | -122.028229 | Certain | cattails (Typha spp.) | |
| Riverside | Bridge Street Pond | Yes | 33.850100 | -117.069500 | Certain | stinging nettle (Urtica dioica) | cattails (Typha spp.) |
| Alameda | Broadmoor Pond | Yes | 37.723190 | -121.723400 | Certain | bull thistle (Cirsium vulgare) |
