San Diego Management & Monitoring ProgramTricolored blackbird is a state-listed endangered species that has declined dramatically in southern California. Once abundant and widespread in San Diego County, there are few known breeding populations remaining at marshes on Conserved Lands. AECOM biologists surveyed for tricolored blackbirds in spring 2021 at historic and recently documented breeding habitats and at potentially suitable habitats. Surveys were to determine if tricolored blackbirds are present during the breeding season and to estimate population size and breeding status. AECOM biologists used a protocol developed by SDMMP to evaluate habitat quality and threats at each suitable habitat site, even those without tricolored blackbirds. These data , and data from subsequent yearly surveys, will be provided to SDMMP to develop management recommendations for tricolored blackbird. Tricolored blackbirds will be surveyed for annually.
Name: San Diego County 2021 Tricolored Blackbird Surveys: Breeding Surveys & Habitat and Threat Assessment
Description: This survey protocol outlines the methods for conducting TRBL surveys across San Diego County in April and May 2021. A team of two surveyors will collect data using two different software packages-Ful
Project type: Monitoring
Target species: Tricolored blackbird
Data steward: Emily Perkins
Main implementing entity: San Diego Management and Monitoring Program
Partner: AECOM
Point of contact: Kris Preston
Project Page manager: Sarah McCutcheon
SDMMP lead: Kris Preston
Study lead: Andrew Fisher; Loren Merrill
MSP Objectives and actions:AGETRI-3