Where to see a Marsh Wren in California
The Marsh Wren is regularly recorded in the counties of 212 California state parks (eBird historical checklists). The strongest bets:
- Prairie Creek Redwoods State Park
- Humboldt Redwoods State Park
- Sue-meg State Park
- Salt Point State Park
- Sonoma Coast State Park
- Mount Tamalpais State Park
- Big Basin Redwoods State Park
- Angel Island State Park
- Tomales Bay State Park
- Montaña de Oro State Park
- Morro Bay State Park
- Anza-Borrego Desert State Park
- Torrey Pines State Natural Reserve
- Crystal Cove State Park
- Cuyamaca Rancho State Park
- Malibu Creek State Park
- Avila State Beach
- Pismo State Beach
- Posmo State Beach
- Doheny State Beach
- Pacheco State Park
- Sunset State Beach
- Topanga State Park
- Cardiff State Beach
- Cayucos State Beach