Migration timing

When do scarlet tanagers arrive in Ontario?

The Scarlet Tanager is a summer breeder in Ontario — here is when to expect it, when it leaves, and how to be ready.

Scarlet Tanager, verified photograph
Photo: Wikimedia Commons

Scarlet Tanager timing in Ontario

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

In Ontario, scarlet tanagers are present through the warm months, arriving around May and heading south again by August.

These windows are set by latitude: Ontario 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 scarlet tanagers are expected in Ontario. 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 scarlet tanagers into Ontario 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 scarlet tanagers eat while they're here

  • Caterpillars, beetles, wasps and moths

A treetop bird that drops to birdbaths and jelly feeders during spring migration, especially after storms.

Full Scarlet Tanager diet guide → · Best feeder for scarlet tanagers →

Native plants that hold scarlet tanagers in Ontario

Food keeps a migrant for a day; habitat keeps it for the season. These Ontario-native plants are known to attract scarlet tanagers:

Red-osier dogwood
Cornus sericea · Shrub

Fruit and cover.

Sugar maple
Acer saccharum · Tree

Insects, seeds and cavities.

Flowering dogwood
Cornus florida · Tree

Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.

Eastern red cedar
Juniperus virginiana · Tree

Dense evergreen roost cover and bluish 'berries' eaten through winter.

Serviceberry
Amelanchier arborea · Tree

Early-summer berries arrive exactly when nestlings are being fed.

Winterberry
Ilex verticillata · Shrub

Deciduous holly holding red fruit into mid-winter.

Staghorn sumac
Rhus typhina · Shrub

Fruit clusters persist all winter as emergency food.

Smooth sumac
Rhus glabra · Shrub

Red fruit heads hang on through winter.

Keep exploring

Frequently asked

When do scarlet tanagers arrive in Ontario?

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

When do scarlet tanagers leave Ontario?

Most scarlet tanagers have left Ontario by August. They spend the winter farther south and return the following spring.

Do scarlet tanagers stay in Ontario all year?

No — in Ontario the Scarlet Tanager is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.

What should I put out before scarlet tanagers arrive in Ontario?

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

Sources

  1. Scarlet Tanager — All About Birds, Cornell Lab of Ornithology
  2. Scarlet Tanager life history — Cornell Lab of Ornithology
  3. Scarlet Tanager — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Ontario
  5. Plant Hardiness Zones of Canada — Natural Resources Canada
  6. Audubon Native Plants Database
  7. Ontario Breeding Bird Atlas — Birds Canada

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.