Based on 16,267 research-grade iNaturalist observations in California, Ruby-crowned Kinglet is most often recorded in December; in California it behaves like a winter visitor. It ranks #72 among birds recorded in the state in our data.
Corthylio calendula
Ruby-crowned Kinglet 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 December
Red-tailed Hawk
White-crowned Sparrow
Yellow-rumped Warbler
Black Phoebe
American Coot
Great Egret
Great Blue Heron
Snowy Egret
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 Ruby-crowned Kinglet appear in California?
Mainly October–March, with the most records in December.
How common is Ruby-crowned Kinglet in California?
It ranks #72 by number of iNaturalist observations among birds in California (16,267 records in our sample).