Migration timing

When do western kingbirds arrive in California?

The Western Kingbird is a summer breeder in California — here is when to expect it, when it leaves, and how to be ready.

Western Kingbird, verified photograph
Photo: Wikimedia Commons

Western Kingbird timing in California

Arrives
Around March
Leaves
By August
Status here
Summer breeder
Nesting season
April–July
Present roughly
March–August

In California, western kingbirds are present through the warm months, arriving around March and heading south again by August. Widespread in the Central Valley and inland.

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

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Highlighted months are when western kingbirds 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 western kingbirds 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 western kingbirds eat while they're here

  • Grasshoppers, bees, wasps, beetles and flies

Hunts from fence wires over open lawns and pastures and fearlessly chases hawks off its territory.

Full Western Kingbird diet guide → · Best feeder for western kingbirds →

Native plants that hold western kingbirds in California

Food keeps a migrant for a day; habitat keeps it for the season. These California-native plants are known to attract western kingbirds:

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

Ponderosa pine
Pinus ponderosa · Tree

Seeds and bark insects; pygmy nuthatch and woodpecker habitat.

Rabbitbrush
Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Palo verde
Parkinsonia florida · Tree

Seed pods and insect-rich spring bloom.

Velvet mesquite
Prosopis velutina · Tree

Seed pods and cover for Verdins and quail.

Coast live oak
Quercus agrifolia · Tree

Acorns anchor Acorn Woodpecker granaries and scrub-jay caches.

Oregon white oak
Quercus garryana · Tree

Acorns and a rich insect community in the Pacific Northwest.

Keep exploring

Frequently asked

When do western kingbirds arrive in California?

western kingbirds 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 western kingbirds leave California?

Most western kingbirds have left California by August. They spend the winter farther south and return the following spring.

Do western kingbirds stay in California all year?

No — in California the Western Kingbird is a summer breeder, present roughly March–August. Outside that window it is rarely seen in the state.

What should I put out before western kingbirds arrive in California?

Have feeders up and clean by early March — first arrivals scout reliable food sources. Good offerings for this species: grasshoppers, bees, wasps, beetles and flies.

Sources

  1. Western Kingbird — All About Birds, Cornell Lab of Ornithology
  2. Western Kingbird life history — Cornell Lab of Ornithology
  3. Western Kingbird — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — California
  5. USDA Plant Hardiness Zone Map (2023)
  6. 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.