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Audubon Caifornia- Tricolored Blackbird

Tricolored Blackbird

The Tricolored Blackbird is a colonial breeder that is nearly endemic to California. Historically,
Tricolored Blackbirds bred on wetlands in the Central Valley with dense cattails and bulrush. As
a result of the loss of 90 percent of the wetlands in the Central Valley, Tricolors increasingly nest
in agricultural fields during the spring. When nesting and farmers’ harvest schedules conflict
high proportions of the Tricolor population are put at risk. Approximately 178,000 individuals
were counted in the 2017 statewide survey, down from an estimated 2-3 million in the 1930s.
Tricolored Blackbirds were listed as a threatened species under the California Endangered
Species Act in April 2018 due to sharp, ongoing population declines. The US Fish and Wildlife
Service is conducting a scientific review to determine if the species will be federally listed, with
a decision expected this winter. In this presentation Conservation Project Director, Samantha
Arthur, will discuss Audubon California’s multi-pronged approach to save the Tricolored
Blackbird. This approach includes creating new wetland habitat, working with dairy farmers to
delay harvest until after chicks have fledged from nests, and advocating for protections under the
state and federal Endangered Species Acts.

Speaker: Samantha Arthur, Audubon California

Thursday, 01/17/19


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Golden Gate Audubon Society

Northbrae Community Church
941 The Alameda
Berkeley, CA 94707

Website: Click to Visit