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Osprey photo by Tim Bray

Mendocino Land Trust Big River Breeding Bird Surveys, Mendocino Headlands State Park (since 2003)

Members of the Mendocino Coast Audubon Society are deeply committed to this citizen science project established by the Mendocino Land Trust in 2003. Surveys record population trends of several species of birds along Big River estuary and Laguna Marsh. Three surveys are performed at 30 point stations from the mouth of Big River to the Laguna, nine miles inland. The land trust organizes and manages surveys during a six-week period in April and May. Birdwatchers of all levels of experience are invited to participate. Teams are typically made up of an experienced leader, a spotter of intermediate birding skill, and a note taker/time keeper with any level of experience. The fun is in the searching and the learning. To learn more, please contact the Mendocino Land Trust at or call 707 962-0470.

Bird Survey Brochure (PDF)