Migration timing

When do orange-crowned warblers arrive in Wyoming?

The Orange-crowned Warbler is a summer breeder in Wyoming — here is when to expect it, when it leaves, and how to be ready.

Orange-crowned Warbler, verified photograph
Photo: Wikimedia Commons

Orange-crowned Warbler timing in Wyoming

Arrives
Around May
Leaves
By August
Status here
Summer breeder
Nesting season
June–July
Present roughly
May–August

In Wyoming, orange-crowned warblers are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Wyoming sits in the middle part of this species' range, so timing here runs later than the continental average — the season starts later this far north and the birds wait for 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 orange-crowned warblers are expected in Wyoming. 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 May is the time to act. Have feeders cleaned, filled and out by early May — the first orange-crowned warblers into Wyoming are scouting for reliable food, and a station that's ready early gets added to their route.

Once nesting begins around June, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.

What orange-crowned warblers eat while they're here

  • Caterpillars, aphids, ants and spiders

One of few warblers that regularly visits winter feeders in the south and on the Pacific coast.

Full Orange-crowned Warbler diet guide → · Best feeder for orange-crowned warblers →

Native plants that hold orange-crowned warblers in Wyoming

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

Bur oak
Quercus macrocarpa · Tree

Drought-hardy prairie oak with large acorns and a heavy insect load.

New England aster
Symphyotrichum novae-angliae · Perennial

Late nectar for insects and fall seed for sparrows.

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

Common hackberry
Celtis occidentalis · Tree

Sweet dry fruit on the branch all winter.

Ponderosa pine
Pinus ponderosa · Tree

Seeds and bark insects; pygmy nuthatch and woodpecker habitat.

Gambel oak
Quercus gambelii · Tree

Acorns for jays and woodpeckers across the southern Rockies.

Rabbitbrush
Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Keep exploring

Frequently asked

When do orange-crowned warblers arrive in Wyoming?

orange-crowned warblers typically arrive in Wyoming around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.

When do orange-crowned warblers leave Wyoming?

Most orange-crowned warblers have left Wyoming by August. They spend the winter farther south and return the following spring.

Do orange-crowned warblers stay in Wyoming all year?

No — in Wyoming the Orange-crowned Warbler is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before orange-crowned warblers arrive in Wyoming?

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

Sources

  1. Orange-crowned Warbler — All About Birds, Cornell Lab of Ornithology
  2. Orange-crowned Warbler life history — Cornell Lab of Ornithology
  3. Orange-crowned Warbler — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Wyoming
  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.