Based on 54,805 research-grade iNaturalist observations in California, Western Bluebird is most often recorded in April; in California it behaves like a year-round resident. It ranks #14 among birds recorded in the state in our data.
Sialia mexicana
Western Bluebird in California by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in California in April
Mallard
House Finch
Anna's Hummingbird
Canada Goose
California Towhee
Mourning Dove
Red-tailed Hawk
California Scrub-Jay
Places to look in California
Botanical GardenThe Huntington Library, Art Museum, and Botanical Gardens
State ParkHearst Castle
Botanical GardenSan Francisco Botanical Garden
State ParkAnza-Borrego Desert State Park
National ForestAngeles National Forest
National ForestSequoia National Forest
FAQ
When does Western Bluebird appear in California?
Mainly March–February, with the most records in April.
How common is Western Bluebird in California?
It ranks #14 by number of iNaturalist observations among birds in California (54,805 records in our sample).