When do yellow-billed cuckoos arrive in California?
The Yellow-billed Cuckoo is a summer breeder in California — here is when to expect it, when it leaves, and how to be ready.
Yellow-billed Cuckoo timing in California
- Arrives
- Around March
- Leaves
- By September
- Status here
- Summer breeder
- Nesting season
- April–August
- Present roughly
- March–September
In California, yellow-billed cuckoos are present through the warm months, arriving around March and heading south again by September. Endangered riparian population along the lower Colorado and Sacramento.
These windows are set by latitude: California sits in the southern part of this species' range, so timing here runs earlier than the continental average — spring comes sooner, and the birds follow it. In any given year, weather can move the first arrivals by a week or two either way.
Month by month in this state
Highlighted months are when yellow-billed cuckoos are expected in California. The edges of the window are the interesting weeks — first arrivals and last departures vary most from year to year.
Getting ready before they arrive
The week before March is the time to act. Have feeders cleaned, filled and out by early March — the first yellow-billed cuckoos into California are scouting for reliable food, and a station that's ready early gets added to their route.
Once nesting begins around April, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.
What yellow-billed cuckoos eat while they're here
- Tent caterpillars, cicadas, katydids and beetles
Called the 'rain crow' for calling before storms; one of few birds that eats hairy caterpillars in bulk.
Full Yellow-billed Cuckoo diet guide → · Best feeder for yellow-billed cuckoos →
Native plants that hold yellow-billed cuckoos in California
Food keeps a migrant for a day; habitat keeps it for the season. These California-native plants are known to attract yellow-billed cuckoos:
Red fruit heads hang on through winter.
Insect-rich in fall and seed in winter.
Dark summer fruit and heavy caterpillar load.
White fruit and red winter stems; good thicket cover.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Early yellow flowers for hummingbirds, then summer fruit.
Saskatoon berries ripen in early summer.
Tart red fruit that persists into winter.
Keep exploring
Frequently asked
When do yellow-billed cuckoos arrive in California?
yellow-billed cuckoos typically arrive in California around March, with nesting underway by April. Timing can shift a week or two with the weather in any given year.
When do yellow-billed cuckoos leave California?
Most yellow-billed cuckoos have left California by September. They spend the winter farther south and return the following spring.
Do yellow-billed cuckoos stay in California all year?
No — in California the Yellow-billed Cuckoo is a summer breeder, present roughly March–September. Outside that window it is rarely seen in the state.
What should I put out before yellow-billed cuckoos arrive in California?
Have feeders up and clean by early March — first arrivals scout reliable food sources. Good offerings for this species: tent caterpillars, cicadas, katydids and beetles.
Sources
- Yellow-billed Cuckoo — All About Birds, Cornell Lab of Ornithology
- Yellow-billed Cuckoo life history — Cornell Lab of Ornithology
- Yellow-billed Cuckoo — 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.