Migration timing

When do red-winged blackbirds arrive in Montana?

The Red-winged Blackbird is a summer breeder in Montana — here is when to expect it, when it leaves, and how to be ready.

Red-winged Blackbird, verified photograph
Photo: Wikimedia Commons

Red-winged Blackbird timing in Montana

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

In Montana, red-winged blackbirds are present through the warm months, arriving around April and heading south again by August.

These windows are set by latitude: Montana sits in the northern 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 red-winged blackbirds 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 April is the time to act. Have feeders cleaned, filled and out by early April — the first red-winged blackbirds into Montana are scouting for reliable food, and a station that's ready early gets added to their route.

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

What red-winged blackbirds eat while they're here

  • Dragonflies, beetles and caterpillars

One of the earliest spring returns in the north; males arrive weeks before females to claim marsh territories.

Full Red-winged Blackbird diet guide → · Best feeder for red-winged blackbirds →

Native plants that hold red-winged blackbirds in Montana

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

Bur oak
Quercus macrocarpa · Tree

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

Wild bergamot
Monarda fistulosa · Perennial

Tubular flowers for hummingbirds and seed heads for finches.

Black-eyed Susan
Rudbeckia hirta · Perennial

Prolific seed heads for finches and sparrows.

Common sunflower
Helianthus annuus · Perennial

Annual native sunflower — the original feeder seed.

Little bluestem
Schizachyrium scoparium · Perennial

Native bunchgrass; winter seed and ground cover for sparrows and juncos.

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.

Keep exploring

Frequently asked

When do red-winged blackbirds arrive in Montana?

red-winged blackbirds typically arrive in Montana around April, with nesting underway by May. Timing can shift a week or two with the weather in any given year.

When do red-winged blackbirds leave Montana?

Most red-winged blackbirds have left Montana by August. They spend the winter farther south and return the following spring.

Do red-winged blackbirds stay in Montana all year?

No — in Montana the Red-winged Blackbird is a summer breeder, present roughly April–August. Outside that window it is rarely seen in the state.

What should I put out before red-winged blackbirds arrive in Montana?

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

Sources

  1. Red-winged Blackbird — All About Birds, Cornell Lab of Ornithology
  2. Red-winged Blackbird life history — Cornell Lab of Ornithology
  3. Red-winged Blackbird — 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.