From June 4–7, birders across the state will take part in the inaugural California Bird Atlas Big Weekend — a statewide effort to document California’s birds and the breeding behaviors that help us better understand and protect them.
Here’s how you can join Big Weekend:
Join an event.
Attend a field trip, guided bird walk, workshop, or other birding event near you. View the statewide roster of California Bird Atlas Big Weekend events here.
Atlas anywhere in California.
You don’t need to attend an event to participate. Document breeding birds wherever you are — from remote habitats to backyards, balconies, neighborhood parks, farms, wetlands, beaches, forests, and city streets.
New to the California Bird Atlas?
You’re still invited! Big Weekend is a great time to get started. Join the CBA eBird project here, then head outside June 4–7 and submit your checklists through eBird.