Red Crossbills in California
When red crossbills are present in California, when they nest, which native California plants feed them, and how to host them in a USDA 5a–11a yard.
- Status in California
- Year-round resident
- Nesting window
- December
- Broods
- 1–2 per season
- Hardiness zones
- USDA 5a–11a
When to expect red crossbills in California
Red Crossbills live in California all year. Wet, mild winters are the green season — the busiest time at coastal feeders as sparrows and hummingbirds settle in. That makes the cold months the time your yard matters most to them.
Mediterranean along the coast and Central Valley, alpine in the Sierra Nevada, and desert in the southeast.
Nesting in California
Across California, red crossbills typically nest from December. Plan around that window: November for setup, December for clean-out.
Dry summers with little rain from May to October; water and summer-blooming natives matter more than extra seed.
- Red Crossbills don't use nest boxes. Keep dense native shrubs and trees such as ponderosa pine, douglas fir for nest sites.
- Delay heavy pruning of shrubs until after December.
Native California plants that attract red crossbills
Of the regional native plants we track for California, these 2 provide food or cover red crossbills use:
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Seed for crossbills, siskins and chickadees.
Feeding red crossbills through the California year
- Top foods: Black-oil sunflower, Hulled sunflower.
- In California's winter: Wet, mild winters are the green season — the busiest time at coastal feeders as sparrows and hummingbirds settle in.
Full diet breakdown for red crossbills · Best feeder for red crossbills
Frequently asked
Are red crossbills in California year-round?
Yes. Red Crossbills are year-round residents in California.
When do red crossbills nest in California?
Nesting in California typically runs December, with 1–2 per season. Clutches are 2–5 eggs, incubated for 12–16 days.
What native plants attract red crossbills in California?
Ponderosa pine, Douglas fir are native plants in California that provide food or cover for red crossbills.
Red Crossbills in other regions
Other backyard birds in California
Sources
- Red Crossbill — All About Birds, Cornell Lab of Ornithology
- Red Crossbill life history — Cornell Lab of Ornithology
- Red Crossbill — Audubon Guide to North American Birds
- eBird region overview and bar charts — California
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.