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 |
|---|---|---|---|---|---|---|---|
| Calaveras | Milton Road #3 | No | 38.039820 | -120.856516 | Certain | ||
| Siskiyou | Lower Klamath NWR-Unit 3A East | Yes | 41.980070 | -121.717650 | Certain | stinging nettle (Urtica dioica) | |
| Merced | Edminster Road | No | 37.322800 | -120.896500 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Riverside | Warner Road Pond | Yes | Certain | bull thistle (Cirsium vulgare) | mustard (Brassica spp.) | ||
| Merced | McNamara Road #1 | No | Certain | ||||
| Tulare | Globe Drive Pond | Yes | 36.097799 | -118.811903 | Certain | cattails (Typha spp.) | |
| San Benito | San Felipe Lake #2 | Yes | 36.984080 | -121.463700 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| San Diego | Bloomdale Ranch Road | No | Certain | Himalayan blackberry (Rubus armeniacus) | |||
| Riverside | Lake Skinner | Yes | 33.582877 | -117.045078 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Siskiyou | Lower Klamath NWR-Unit 6A | Yes | 41.974300 | -121.716900 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Riverside | San Jacinto WA: Potrero Unit | Yes | 33.863050 | -116.948300 | Certain | ||
| Colusa | Husted Road at Highway 20 | Yes | 39.174000 | -122.132000 | Certain | cattails (Typha spp.) | |
| Contra Costa | Lawrence Road Pond | Yes | 37.784300 | -121.902500 | Certain | cattails (Typha spp.) | bulrush or tule (Schoenoplectus spp.) |
| Monterey | Bryant Canyon Road Pond | Yes | 36.443090 | -121.312300 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Merced | Mitchell Road | Yes | 37.404700 | -120.936300 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Napa | Juliana Vineyard Pond #2 | Yes | 38.655900 | -122.396700 | Certain | cattails (Typha spp.) | |
| Sacramento | Jordan Lane/Laguna Creek | No | 38.449230 | -121.346200 | Certain | ||
| Colusa | Harbison Road at Jameson Road | No | 39.248300 | -122.084200 | Certain | cattails (Typha spp.) | |
| Sacramento | Birch Ranch 2 | Yes | 38.484000 | -121.288000 | Certain | Himalayan blackberry (Rubus armeniacus) | cattails (Typha spp.) |
| Kern | Kern River at Lost Hills | No | 35.604600 | -119.654800 | Certain | ||
| Solano | Lynch Canyon North | Yes | 38.195730 | -122.194383 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Butte | Tres Vias Road | No | 39.510100 | -121.654400 | Certain | other (note in Comments) | |
| Riverside | Warren Road | Yes | 33.821228 | -117.045765 | Certain | mallow (Malva sp.) | mustard (Brassica spp.) |
| Napa | Huichica Creek Pond | Yes | 38.211883 | -122.346411 | Certain | cattails (Typha spp.) | |
| Sacramento | Tavernor Road Pond | No | 38.430850 | -121.194900 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Alameda | Vallecitos Lane | Yes | 37.596331 | -121.860909 | Certain | other (note in Comments) | |
| Tulare | Creighton Ranch | Yes | 36.069444 | -119.452778 | Certain | other (note in Comments) | |
| Alameda | Coyote Hills Regional Park- Dumbarton | Yes | 37.542672 | -122.086945 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Monterey | Warner Lake | Yes | 36.880300 | -121.743400 | Certain | bulrush or tule (Schoenoplectus spp.) | |
| Kern | Lake Isabella Boulevard | No | 35.619240 | -118.479320 | Certain | cattails (Typha spp.) | |
| Ventura | Lake Sherwood | Yes | 34.137500 | -118.861100 | Certain | cattails (Typha spp.) | willows (Salix spp.) |
| San Luis Obispo | Cuyama River | Yes | 35.067370 | -119.989610 | Certain | cattails (Typha spp.) | |
| San Benito | Bettencourt Dairy | No | 36.982900 | -121.468800 | Certain | ||
| Los Angeles | Lakewood County Club | No | 33.834710 | -118.149750 | Certain | ||
| Sacramento | Excelsior Road at Elder Creek Road | Yes | 38.514910 | -121.302800 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Sacramento | Calvine Road at Highway 99 | No | 38.457800 | -121.410100 | Certain | Himalayan blackberry (Rubus armeniacus) | |
| Kern | Tehachapi #14 - Sewer Ponds | No | 35.136600 | -118.459999 | Certain | other (note in Comments) | |
| San Benito | Idria Road | No | 36.516700 | -120.833100 | Certain | ||
| Merced | Central American 3 | Yes | Certain | Himalayan blackberry (Rubus armeniacus) | |||
| Yuba | Flying Rodeo | No | 39.062582 | -121.514153 | Certain | other (note in Comments) | |
| San Joaquin | Hospital Creek | No | 37.603230 | -121.339240 | Certain | other (note in Comments) | |
| Monterey | Bradley Road 2 | Yes | 35.861300 | -120.786490 | Certain | milk thistle (Silybum marianum) | mustard (Brassica spp.) |
| Colusa | Putnam Road Rice Field | Yes | 39.325301 | -121.942449 | Certain | other (note in Comments) | |
| Siskiyou | Tule Lake marsh | Yes | 41.946580 | -121.543658 | Certain | cattails (Typha spp.) | |
| Kern | Oswell Street | No | 35.346320 | -118.956300 | Certain | other (note in Comments) | |
| Stanislaus | Sonora Road #1 | No | 37.880100 | -120.814600 | Certain | other (note in Comments) | |
| San Diego | Santa Ysabel Ranch | Yes | Certain | Himalayan blackberry (Rubus armeniacus) | stinging nettle (Urtica dioica) | ||
| Yuba | Tanabe Road | No | 39.266300 | -121.527300 | Certain | ||
| Yolo | Port of West Sacramento | Yes | 38.563800 | -121.555500 | Certain | mustard (Brassica spp.) | other (note in Comments) |
| Riverside | Calimesa | No | 33.986400 | -117.059930 | Certain | other (note in Comments) |
