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
El Dorado Farm House Yes 38.618357 -121.071817 Certain Himalayan blackberry (Rubus armeniacus)
San Luis Obispo Feenstra Road Yes 35.570700 -120.569600 Certain cattails (Typha 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 38.510479 -121.302522 Certain Himalayan blackberry (Rubus armeniacus) other (note in Comments)
Sacramento Florin Rd County WTP Yes 38.499043 -121.312580 Certain cattails (Typha spp.)
Sacramento Florin Road Yes 38.498400 -121.266620 Certain milk thistle (Silybum marianum)
Sacramento Florin Road at Bradshaw Road Yes 38.498300 -121.325000 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Florin Road at Coe Lane Yes 38.495838 -121.311738 Certain Himalayan blackberry (Rubus armeniacus)
Sacramento Florin Road at Eagles Nest Road Yes 38.496000 -121.253000 Certain cattails (Typha spp.)
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 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.)
San Benito Frye Lane Yes 36.932300 -121.423200 Certain bulrush or tule (Schoenoplectus spp.) cattails (Typha spp.)
Monterey Ft. Ord - Oil Well Road Yes 36.601100 -121.717500 Certain stinging nettle (Urtica dioica)
Stanislaus Fulkerth Road at Vivian Road Yes 37.507400 -121.049200 Certain cattails (Typha spp.)
Tehama Gay Creek Yes 39.799000 -122.196100 Uncertain bulrush or tule (Schoenoplectus spp.) Himalayan blackberry (Rubus armeniacus)
Tehama Gay Creek #2 Yes 39.798900 -122.204500 Certain Himalayan blackberry (Rubus armeniacus)
Kern General Beale Road Yes 35.281900 -118.753100 Certain other (note in Comments) other (note in Comments)
Sutter Gilsizer Slough Yes 39.077800 -121.636400 Uncertain bulrush or tule (Schoenoplectus spp.)
Sutter Gilsizer Slough at Tudor Road Yes 39.005220 -121.701570 Certain bulrush or tule (Schoenoplectus spp.)
Placer Gladding Hwy. 65 Yes 38.917783 -121.321013 Certain Himalayan blackberry (Rubus armeniacus)
Placer Gleason Ranch Sunset Blvd. West Yes 38.818311 -121.407981 Certain Himalayan blackberry (Rubus armeniacus)
Yolo Glide Tule Ranch Yes 38.479900 -121.632140 Certain bulrush or tule (Schoenoplectus spp.) other (note in Comments)
Yolo Glide Tule Ranch #2 Yes 38.470951 -121.613250 Certain other (note in Comments)
Tulare Globe Drive Pond Yes 36.097799 -118.811903 Certain cattails (Typha spp.)
Tulare GMC South Yes 36.007490 -119.463910 Certain triticale mallow (Malva sp.)
Santa Barbara Goleta Slough Yes 34.416900 -119.840300 Certain other (note in Comments)
San Luis Obispo Grant Lake Intermittent Pond Yes 35.599305 -120.153029 Certain cattails (Typha spp.)
Sacramento Grant Line N of Douglas Yes 38.570063 -121.185038 Certain cattails (Typha spp.)
Sacramento Grant Line Road at Bond Road Yes 38.411600 -121.313200 Certain Himalayan blackberry (Rubus armeniacus)
Butte Gray Lodge North Yes 39.346262 -121.800957 Certain bulrush or tule (Schoenoplectus spp.) cattails (Typha spp.)
Sacramento Green Road Yes 38.423990 -121.251000 Certain cattails (Typha spp.)
Butte Gridley Yes 39.363300 -121.697600 Uncertain other (note in Comments)
Butte Gridley Road at Pennington Road Yes 39.366400 -121.794200 Certain milk thistle (Silybum marianum)
Merced Gun Club Road Yes 37.231200 -120.958000 Certain bulrush or tule (Schoenoplectus spp.)
Merced Gun Club Road #2 Yes 37.231300 -120.940000 Certain cattails (Typha spp.)
Merced Gun Club Road #3 Yes 37.231222 -120.923196 Certain cattails (Typha spp.) willows (Salix spp.)
Merced Gun Club Road #4 Yes 37.231238 -120.929083 Certain bulrush or tule (Schoenoplectus spp.) willows (Salix spp.)
Merced Gun Club Road and Azevedo Road Yes 37.230055 -120.973463 Certain triticale wheat
Merced Gustine Overpass Yes 37.246900 -121.086000 Certain cattails (Typha spp.) bulrush or tule (Schoenoplectus spp.)
CSVXLS