Migration timing

When do pine grosbeaks arrive in Wyoming?

The Pine Grosbeak is a summer breeder in Wyoming — here is when to expect it, when it leaves, and how to be ready.

Pine Grosbeak, verified photograph
Photo: Wikimedia Commons

Pine Grosbeak timing in Wyoming

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

In Wyoming, pine grosbeaks 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 pine grosbeaks 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 pine grosbeaks 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 pine grosbeaks eat while they're here

  • Spruce and fir buds, dandelion seeds and insects

An irruptive winter finch — some years it swarms northern feeders, other years it stays in the boreal forest.

Full Pine Grosbeak diet guide → · Best feeder for pine grosbeaks →

Native plants that hold pine grosbeaks in Wyoming

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

Smooth sumac
Rhus glabra · Shrub

Red fruit heads hang on through winter.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

Red-osier dogwood
Cornus sericea · Shrub

White fruit and red winter stems; good thicket cover.

Common hackberry
Celtis occidentalis · Tree

Sweet dry fruit on the branch all winter.

Rocky Mountain juniper
Juniperus scopulorum · Tree

Berry-like cones feed bluebirds, solitaires and waxwings in winter.

Ponderosa pine
Pinus ponderosa · Tree

Seeds and bark insects; pygmy nuthatch and woodpecker habitat.

Golden currant
Ribes aureum · Shrub

Early yellow flowers for hummingbirds, then summer fruit.

Western serviceberry
Amelanchier alnifolia · Shrub

Saskatoon berries ripen in early summer.

Keep exploring

Frequently asked

When do pine grosbeaks arrive in Wyoming?

pine grosbeaks 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 pine grosbeaks leave Wyoming?

Most pine grosbeaks have left Wyoming by August. They spend the winter farther south and return the following spring.

Do pine grosbeaks stay in Wyoming all year?

No — in Wyoming the Pine Grosbeak is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before pine grosbeaks arrive in Wyoming?

Have feeders up and clean by early May — first arrivals scout reliable food sources. Good offerings for this species: spruce and fir buds, dandelion seeds and insects.

Sources

  1. Pine Grosbeak — All About Birds, Cornell Lab of Ornithology
  2. Pine Grosbeak life history — Cornell Lab of Ornithology
  3. Pine Grosbeak — 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.