Latest News

2022 Statewide Survey

The 2022 Tricolored Blackbird Statewide Survey will be conducted April 15-17.  This is the first statewide survey, which is usually conducted every three years, conducted since 2017 due to the pandemic and pandemic-related travel restrictions on participants.

Results of 2021 Southern California Survey

2021 Southern California Survey: Results

From April 2 to April 4, 2021, 14 participants, coordinated by Drs. Anita Hayworth and Rose Cook, surveyed 87 known tricolored blackbird colony locations in 5 counties in the 2021 Tricolored Blackbird Southern California Survey.  The 5 counties surveyed were Orange, Riverside, San Bernardino, San Diego, and Ventura.

Status of Baja California Population Segment Reported in Western Birds

An article by Dick Erickson, Horacio de la Cueva, and Enrique Zamora-Hernandez in the journal Western Birds documents the steep decline in abundance and contraction of the range of the tricolored blackbird in the southernmost portion of its range in northern Baja California, Mexico.  The authors found that fewer birds nested in fewer colonies in 2019 than at the turn of the 21st Century, with but a single colony consisting of about 150 breeding birds documented in 2019.  These effects were believed due to persistent drought, rising temperatures, and agricultural intensification.

2020 Statewide Survey Postponed

In response to the Governor of California's order to address an unprecedented threat to public health and safety, and taking into consideration the responses to a query of County Coordinators, the 2020 Tricolored Blackbird Statewide Survey has been cancelled and will be rescheduled for next year.

2020 Statewide Survey

The 2020 Tricolored Blackbird Statewide Survey will be conducted over three days - April 3rd through the 5th, 2020. In case of severe weather, the Survey will occur over the weekend of April 17th through the 19th.


USFWS Finds Listing Not Warranted

On August 15, 2019 the U.S. Fish and Wildlife Service published a finding that listing the tricolored blackbird under the U.S. Endangered Species Act was not warranted.

Tricolored Blackbirds featured in Living Bird Magazine

An article describing the biology and conservation of tricolored blackbirds was published in the Spring, 2019 issue of Cornell University's Living Bird Magazine.  The article, written by author Ben Goldfarb, highlights the unique biology of the species, the history of efforts to study it, the threats to its survival, and the work of the Tricolored Blackbird Working Group to conserve it.  You can read the on-line version of the article here.

2017 Statewide Survey April 7-9

The 2017 Tricolored Blackbird Statewide Survey will be conducted over three days - April 7th through the 9th, 2017. In case of severe weather, the Survey will occur over the weekend of April 21st through the 23rd.

California Fish and Game Commission Advances Tricolored Blackbird to Candidacy under CESA

At its December 10, 2015 meeting, the California Fish and Game Commission (Commission) voted 3-1 to advance the Tricolored Blackbird to candidacy under the California Endangered Species Act, triggering a 12-month period during which the California Department of Fish and Wildlife will conduct a status review to inform the Commission’s subsequent decision on whether to list the species as threatened or endangered. As a candidate species, the Tricolored Blackbird receives the same legal protection afforded to an endangered or threatened species (Fish & Game Code, § 2085).

State Endangered Status Allowed to Expire

Today the California Fish and Game Commission voted 2-1 to allow the emergency protection of the tricolored blackbird to expire by not recommending a full review by the Department of Fish and Wildlife of the status of the species.

C.B.D. Petitions U.S. Fish & Wildlife Service for Emergency Listing of Tricolored Blackbird as Endangered under E.S.A.

Today the Center for Biological Diversity petitioned the Secretary of the Interior to list the tricolored blackbird as endangered under the Endangered Species Act. The Center cited the recent steep population decline as documented in the most recent statewide surveys conducted in 2008, 2011, and 2014 as evidence for the need for federal protection.