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 Namesort icon Colony Latitude Longitude Location Confidence Primary Substrate Secondary Substrate
Santa Clara Ed Levin County Park No 37.458700 -121.865700 Certain other (note in Comments)
Merced Edminster Rd and 2nd Av Yes 37.334951 -120.896559 Certain Himalayan blackberry (Rubus armeniacus) milk thistle (Silybum marianum)
Merced Edminster Road No 37.322800 -120.896500 Certain Himalayan blackberry (Rubus armeniacus)
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 at Bradshaw Road Yes 38.504930 -121.341170 Certain Himalayan blackberry (Rubus armeniacus) wild rose
Sacramento Elder Creek I Yes 38.513210 -121.312460 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Elder Creek II Yes 38.518200 -121.312220 Certain Himalayan blackberry (Rubus armeniacus)
Los Angeles Elizabeth Lake No 34.663900 -118.390900 Certain
Glenn Elk Creek Yes 39.603400 -122.538000 Uncertain other (note in Comments)
Monterey Elkhorn Slough No 36.859000 -121.743000 Uncertain other (note in Comments)
Fresno Enterprise Canal Yes 36.799330 -119.522170 Certain bulrush or tule (Schoenoplectus spp.)
Kern Entrada Boulevard No 35.645400 -118.366580 Certain mustard (Brassica spp.)
Yuba Erle Road at Bradshaw Road No 39.100270 -121.458670 Certain
San Joaquin Escalon Yes 37.794000 -120.996000 Uncertain cattails (Typha spp.)
San Joaquin Escalon Bellota Road No 38.028100 -121.014900 Certain other (note in Comments)
Sacramento Excelsior and Jackson Rd. Yes 38.519624 -121.294186 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Excelsior Road at Calvine Road No 38.453800 -121.301800 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Excelsior Road at Elder Creek Road Yes 38.514910 -121.302800 Certain Himalayan blackberry (Rubus armeniacus)
Riverside Fairmount Park No 33.996000 -117.373000 Certain bulrush or tule (Schoenoplectus spp.)
San Joaquin Farmington Dam No 37.913900 -120.940200 Certain other (note in Comments)
Kern Fay Ranch Road No 35.677900 -118.276700 Certain cattails (Typha spp.)
San Luis Obispo Feenstra Road Yes 35.570700 -120.569600 Certain cattails (Typha spp.)
Los Angeles Fin & Feather Club Yes 34.555800 -118.128000 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Fresno Firebaugh Yes 36.850634 -120.439028 Uncertain other (note in Comments)
Riverside Fisherman's Retreat Yes 33.972620 -117.094946 Certain cattails (Typha spp.)
Sacramento Five Palm Trees Yes 38.509759 -121.309662 Certain Himalayan blackberry (Rubus armeniacus) other (note in Comments)
San Joaquin Flood Road No 38.010100 -121.035900 Certain other (note in Comments)
Sacramento Florin Road Yes 38.498400 -121.266620 Certain milk thistle (Silybum marianum)
Sacramento Florin Road at Bradshaw Road No 38.498300 -121.325000 Certain
Sacramento Florin Road at Eagles Nest Road Yes 38.496000 -121.253000 Certain cattails (Typha spp.)
Sacramento Florin Road at Excelsior Road #1 No 38.497890 -121.293850 Certain
Sacramento Florin Road at Excelsior Road #2 Yes 38.495400 -121.297180 Certain cattails (Typha spp.)
Sacramento Florin Road at Florencia Lane Yes 38.496300 -121.354900 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Florin Road Railroad Tracks No 38.494760 -121.357130 Certain Himalayan blackberry (Rubus armeniacus)
Merced Flying M Dam No 37.377000 -120.275500 Certain other (note in Comments)
Yuba Flying Rodeo No 39.062582 -121.514153 Certain other (note in Comments)
Sacramento Folsom Lake College Yes 38.662500 -121.124300 Certain Himalayan blackberry (Rubus armeniacus) cattails (Typha spp.)
Sacramento Folsom South Canal at White Rock Road Yes 38.589000 -121.267000 Certain milk thistle (Silybum marianum) bull thistle (Cirsium vulgare)
Sacramento Folsom South Canal End Yes 38.309610 -121.187590 Certain Himalayan blackberry (Rubus armeniacus)
Santa Barbara Foothill Road Yes 34.897540 -119.512300 Certain other (note in Comments)
Monterey Fort Ord Yes 36.584480 -121.723900 Certain stinging nettle (Urtica dioica)
Colusa Four Mile Road Yes 39.382013 -122.113552 Certain other (note in Comments)
Tuolumne Fraguero Road Yes 37.997200 -120.441800 Certain other (note in Comments) cattails (Typha spp.)
Fresno Friant-Kern Canal #1 Yes 36.881700 -119.600000 Certain other (note in Comments)
Fresno Friant-Kern Canal #2 Yes 36.868100 -119.593000 Certain cattails (Typha spp.)
Merced Frog Pond Yes 36.946700 -120.733500 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
Yuba Fruitland Road No 39.293700 -121.506500 Certain Himalayan blackberry (Rubus armeniacus)
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