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
Kern East Bakersfield Yes 35.371000 -118.803000 Uncertain bulrush or tule (Schoenoplectus spp.)
Butte East Butte City Yes 39.464800 -121.969800 Uncertain cattails (Typha spp.)
Glenn East Butte City #2 Yes 39.464700 -121.895100 Uncertain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
San Diego East Chula Vista Yes 32.698622 -116.981049 Uncertain cattails (Typha spp.)
Stanislaus East Crows Landing Yes 37.393000 -120.992000 Uncertain cattails (Typha spp.)
Colusa East Delevan Yes 39.353400 -122.115800 Uncertain cattails (Typha spp.)
Merced East Le Grand Road Yes 37.227590 -120.165028 Certain milk thistle (Silybum marianum)
Merced East Le Grand Road 2 Yes 37.224230 -120.152700 Certain milk thistle (Silybum marianum)
Sutter East Levee Road at Riego Road Yes 38.750900 -121.494100 Certain cattails (Typha spp.)
Merced East Los Banos Yes 37.066000 -120.751000 Uncertain bulrush or tule (Schoenoplectus spp.)
Glenn East Norman Yes 39.407900 -122.117300 Uncertain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Glenn East Norman #2 Yes 39.407470 -122.177360 Uncertain cattails (Typha spp.)
Glenn East Norman #3 Yes 39.407600 -122.155300 Uncertain cattails (Typha spp.)
Stanislaus East Oakdale Yes 37.766000 -120.828000 Certain cattails (Typha spp.)
Yolo East of Madison Yes 38.678200 -121.954300 Certain Himalayan blackberry (Rubus armeniacus) milk thistle (Silybum marianum)
Colusa East Park Reservoir Yes 39.312485 -122.489705 Certain cattails (Typha spp.)
Colusa East Park Reservoir: Chisholm Cove Yes 39.354590 -122.494119 Certain cattails (Typha spp.)
Colusa East Park Reservoir: Stony Creek Yes 39.304631 -122.505279 Certain cattails (Typha spp.)
Stanislaus East Patterson Yes 37.474000 -121.085000 Uncertain bulrush or tule (Schoenoplectus spp.)
Stanislaus East Patterson #2 Yes 37.474000 -121.081000 Uncertain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
San Diego East Santee Yes 32.845000 -116.976000 Uncertain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Merced East Snelling Yes 37.519000 -120.422000 Uncertain cattails (Typha spp.)
San Joaquin East Tracy Yes 37.739000 -121.418000 Uncertain cattails (Typha spp.)
Glenn East Willows Yes 39.513800 -122.181700 Uncertain cattails (Typha spp.)
Glenn East Willows #2 Yes 39.514300 -122.125500 Uncertain cattails (Typha spp.) willows (Salix spp.)
Mendocino Eastside Road Potter Valley Yes 39.301816 -123.095178 Certain Himalayan blackberry (Rubus armeniacus)
Merced Edminster Road and Second Avenue Yes 37.334951 -120.896559 Certain Himalayan blackberry (Rubus armeniacus) milk thistle (Silybum marianum)
Los Angeles El Dorado Nature Center Yes 33.805100 -118.087000 Certain bulrush or tule (Schoenoplectus spp.)
Los Angeles El Dorado Regional Park Yes 33.824300 -118.084000 Certain bulrush or tule (Schoenoplectus spp.)
Merced El Nido Yes 37.134000 -120.492000 Uncertain cattails (Typha spp.)
Orange El Toro Yes 33.680000 -117.658000 Uncertain bulrush or tule (Schoenoplectus spp.)
Sacramento Elder Creek 1 Yes 38.513210 -121.312460 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Elder Creek 2 Yes 38.518200 -121.312220 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Elder Creek 4 Yes 38.511601 -121.309946 Certain Himalayan blackberry (Rubus armeniacus) other (note in Comments)
Sacramento Elder Creek 5 Yes 38.519236 -121.318653 Certain California blackberry (Rubus ursinus) cattails (Typha spp.)
Sacramento Elder Creek 6 Yes 38.514982 -121.323438 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Elder Creek 7 Yes 38.513080 -121.309831 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Elder Creek at Bradshaw Road Yes 38.504930 -121.341170 Certain Himalayan blackberry (Rubus armeniacus) wild rose
Crook Elliot Marsh Yes 44.341700 -120.921600 Certain cattails (Typha spp.)
Fresno Enterprise Canal Yes 36.799330 -119.522170 Certain bulrush or tule (Schoenoplectus spp.)
Yuba Erle Road-Reeds Creek North Yes 39.107858 -121.507019 Certain Himalayan blackberry (Rubus armeniacus) lettuce (Lactuca spp.)
Yuba Erle Road-Reeds Creek South Yes 39.104882 -121.507051 Certain Himalayan blackberry (Rubus armeniacus)
San Joaquin Escalon Yes 37.794000 -120.996000 Uncertain cattails (Typha spp.)
Sacramento Eschinger Road Yes 38.350549 -121.394540 Certain Himalayan blackberry (Rubus armeniacus) willows (Salix spp.)
San Bernardino Euclid and Eucalyptus, Chino Yes 33.987386 -117.649412 Certain wheat
Sacramento Excelsior and Eagles Nest Yes 38.516310 -121.286308 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Sacramento Excelsior and Jackson Rd. Yes 38.519624 -121.294186 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Excelsior at Elder Creek Yes 38.514910 -121.302800 Certain Himalayan blackberry (Rubus armeniacus)
Merced Fahey South Yes 37.126654 -120.989477 Certain mallow (Malva sp.)
El Dorado Farm House Yes 38.618357 -121.071817 Certain Himalayan blackberry (Rubus armeniacus)
CSVXLS