Migration timing

When do American redstarts arrive in Montana?

The American Redstart is a summer breeder in Montana — here is when to expect it, when it leaves, and how to be ready.

American Redstart, verified photograph
Photo: Wikimedia Commons

American Redstart timing in Montana

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

In Montana, American redstarts are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Montana 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 American redstarts are expected in Montana. 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 American redstarts into Montana 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 American redstarts eat while they're here

  • Leafhoppers, caterpillars, flies and beetles

Fans its bright tail to flush insects. A common migrant at birdbaths in wooded yards.

Full American Redstart diet guide → · Best feeder for American redstarts →

Native plants that hold American redstarts in Montana

Food keeps a migrant for a day; habitat keeps it for the season. These Montana-native plants are known to attract American redstarts:

Bur oak
Quercus macrocarpa · Tree

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

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Paper birch
Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all 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.

Rabbitbrush
Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Douglas fir
Pseudotsuga menziesii · Tree

Seed for crossbills, siskins and chickadees.

Keep exploring

Frequently asked

When do American redstarts arrive in Montana?

American redstarts typically arrive in Montana around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.

When do American redstarts leave Montana?

Most American redstarts have left Montana by August. They spend the winter farther south and return the following spring.

Do American redstarts stay in Montana all year?

No — in Montana the American Redstart is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before American redstarts arrive in Montana?

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

Sources

  1. American Redstart — All About Birds, Cornell Lab of Ornithology
  2. American Redstart life history — Cornell Lab of Ornithology
  3. American Redstart — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Montana
  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.