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 |
|---|---|---|---|---|---|---|---|
| Tehama | Orland | Yes | 39.747300 | -122.187400 | Uncertain | cattails (Typha spp.) | |
| Stanislaus | Orestimba Creek | No | 37.297800 | -121.155300 | Certain | ||
| Merced | Orchard Road at Highway 140 | Yes | 37.251200 | -121.071300 | Certain | cattails (Typha spp.) | |
| Butte | Openshaw Road | Yes | 39.592700 | -121.640400 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Tuolumne | Old Wards Ferry Road 2 | Yes | 37.942979 | -120.336669 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| Monterey | Old Stage Road Pond #2 | Yes | 36.660200 | -121.548400 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Monterey | Old Stage Road Pond #1 | Yes | 36.654010 | -121.542100 | Certain | cattails (Typha spp.) | |
| San Joaquin | Old River | No | 37.798970 | -121.524950 | Certain | ||
| San Diego | Old Mission Dam | No | 32.839600 | -117.043100 | Certain | ||
| Sonoma | Old Adobe Road | No | 38.289040 | -122.645780 | Certain | other (note in Comments) | |
| Colusa | Ohm Road | Yes | 39.063720 | -122.041900 | Certain | cattails (Typha spp.) | |
| Monterey | Oasis Road/San Lucas Road | Yes | 36.116840 | -121.083130 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Stanislaus | Oakdale | Yes | 37.766000 | -120.847000 | Uncertain | cattails (Typha spp.) | |
| Butte | Oak Leaf Island | Yes | 39.413000 | -121.890000 | Uncertain | cattails (Typha spp.) | |
| San Diego | Oak Grove | Yes | 33.388600 | -116.787600 | Certain | ||
| Merced | O'Neill Forebay WA #3 | Yes | 37.077490 | -121.031280 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | O'Neill Forebay WA #2 | Yes | 37.081830 | -121.025520 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | O'Neill Forebay WA #1 | Yes | 37.083308 | -121.027710 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Merced | O'Neill Forebay (non-colony) | No | 37.082000 | -121.023200 | Certain | ||
| Merced | O'Neill Forebay | Yes | 37.079300 | -121.023000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Colusa | O'Hair Road | No | 39.195300 | -122.040600 | Certain | ||
| Merced | Nunes & Sons Dairy | No | 37.313500 | -120.895000 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Colusa | Northwest Sutter | No | 39.191886 | -121.793790 | Uncertain | Himalayan blackberry (Rubus armeniacus) | |
| Monterey | Northwest Salinas | Yes | 36.725000 | -121.711000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Glenn | Northwest Princeton #3 | Yes | 39.436300 | -122.050000 | Uncertain | cattails (Typha spp.) | |
| Glenn | Northwest Princeton #2 | Yes | 39.425600 | -122.037300 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Glenn | Northwest Princeton | Yes | 39.451700 | -122.055800 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Merced | Northwest of Merced | Yes | 37.450000 | -120.660000 | Uncertain | bull thistle (Cirsium vulgare) | |
| Lake | Northwest Nice | Yes | 39.155300 | -122.890700 | Uncertain | Himalayan blackberry (Rubus armeniacus) | |
| Fresno | Northwest Clovis | Yes | 36.858000 | -119.739000 | Uncertain | Himalayan blackberry (Rubus armeniacus) | |
| Riverside | Northwest Alberhill | Yes | 33.737902 | -117.417412 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Colusa | Northeast Williams | Yes | 39.193300 | -122.085300 | Uncertain | cattails (Typha spp.) | |
| Merced | Northeast Snelling #2 | Yes | 37.573000 | -120.380000 | Uncertain | cattails (Typha spp.) | |
| Merced | Northeast Snelling | Yes | 37.545000 | -120.397000 | Uncertain | cattails (Typha spp.) | |
| San Diego | Northeast San Luis Rey | Yes | 33.250000 | -117.299000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Monterey | Northeast Salinas | Yes | 36.740000 | -121.550000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Glenn | Northeast Norman #2 | Yes | 39.484200 | -122.081100 | Uncertain | cattails (Typha spp.) | |
| Glenn | Northeast Norman | Yes | 39.434700 | -122.149000 | Uncertain | cattails (Typha spp.) | |
| Merced | Northeast Merced | Yes | 37.334000 | -120.419000 | Uncertain | cattails (Typha spp.) | willows (Salix spp.) |
| Yuba | Northeast Marysville #6 | Yes | 39.163000 | -121.569000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Yuba | Northeast Marysville #5 | Yes | 39.290000 | -121.390000 | Uncertain | cattails (Typha spp.) | willows (Salix spp.) |
| Yuba | Northeast Marysville #4 | Yes | 39.230000 | -121.470000 | Uncertain | cattails (Typha spp.) | |
| Yuba | Northeast Marysville #3 | Yes | 39.240000 | -121.450000 | Uncertain | cattails (Typha spp.) | |
| Yuba | Northeast Marysville #2 | Yes | 39.250000 | -121.440000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Yuba | Northeast Marysville | Yes | 39.270000 | -121.410000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Los Angeles | Northeast Del Sur | Yes | 34.705000 | -118.270700 | Uncertain | Giant reed (Arundo donax) | |
| Shasta | Northeast Cottonwood | Yes | 40.430000 | -122.200000 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Monterey | Northeast Castroville | Yes | 36.791000 | -121.701000 | Uncertain | bulrush or tule (Schoenoplectus spp.) | |
| Glenn | Northeast Butte City #3 | Yes | 39.555200 | -121.869600 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Glenn | Northeast Butte City #2 | Yes | 39.535100 | -121.894200 | Uncertain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
