Migration timing

When do great blue herons arrive in Manitoba?

The Great Blue Heron is a summer breeder in Manitoba — here is when to expect it, when it leaves, and how to be ready.

Great Blue Heron, verified photograph
Photo: Wikimedia Commons

Great Blue Heron timing in Manitoba

Arrives
Around February
Leaves
By July
Status here
Summer breeder
Nesting season
March–June
Present roughly
February–July

In Manitoba, great blue herons are present through the warm months, arriving around February and heading south again by July.

These windows are set by latitude: Manitoba 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 great blue herons are expected in Manitoba. 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 February is the time to act. Have feeders cleaned, filled and out by early February — the first great blue herons into Manitoba are scouting for reliable food, and a station that's ready early gets added to their route.

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

What great blue herons eat while they're here

  • Fish, frogs, crayfish and voles

A regular at backyard ponds; net or decoy-protect ornamental fish if one moves in.

Full Great Blue Heron diet guide → · Best feeder for great blue herons →

Native plants that hold great blue herons in Manitoba

Food keeps a migrant for a day; habitat keeps it for the season. These Manitoba-native plants are known to attract great blue herons:

Bur oak
Quercus macrocarpa · Tree

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

American elderberry
Sambucus canadensis · Shrub

Late-summer berry clusters taken by over 40 bird species.

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.

Eastern white pine
Pinus strobus · Tree

Seed-rich cones and year-round shelter.

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.

Keep exploring

Frequently asked

When do great blue herons arrive in Manitoba?

great blue herons typically arrive in Manitoba around February, with nesting underway by March. Timing can shift a week or two with the weather in any given year.

When do great blue herons leave Manitoba?

Most great blue herons have left Manitoba by July. They spend the winter farther south and return the following spring.

Do great blue herons stay in Manitoba all year?

No — in Manitoba the Great Blue Heron is a summer breeder, present roughly February–July. Outside that window it is rarely seen in the state.

What should I put out before great blue herons arrive in Manitoba?

Have feeders up and clean by early February — first arrivals scout reliable food sources. Good offerings for this species: fish, frogs, crayfish and voles.

Sources

  1. Great Blue Heron — All About Birds, Cornell Lab of Ornithology
  2. Great Blue Heron life history — Cornell Lab of Ornithology
  3. Great Blue Heron — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Manitoba
  5. Plant Hardiness Zones of Canada — Natural Resources Canada
  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.