Migration timing

When do yellow warblers arrive in California?

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

Yellow Warbler, verified photograph
Photo: Wikimedia Commons

Yellow Warbler timing in California

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

In California, yellow warblers are present through the warm months, arriving around March and heading south again by August.

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 yellow warblers 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 warblers 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 warblers eat while they're here

  • Caterpillars, midges, beetles and aphids

A wet-thicket warbler. It ignores feeders but uses birdbaths and drippers, especially on migration.

Full Yellow Warbler diet guide → · Best feeder for yellow warblers →

Native plants that hold yellow warblers in California

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

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 yellow warblers arrive in California?

yellow warblers 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 warblers leave California?

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

Do yellow warblers stay in California all year?

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

What should I put out before yellow warblers arrive in California?

Have feeders up and clean by early March — first arrivals scout reliable food sources. Good offerings for this species: caterpillars, midges, beetles and aphids.

Sources

  1. Yellow Warbler — All About Birds, Cornell Lab of Ornithology
  2. Yellow Warbler life history — Cornell Lab of Ornithology
  3. Yellow Warbler — 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.