When do bluebirds arrive in Ontario?
The Eastern Bluebird is a summer breeder in Ontario — here is when to expect it, when it leaves, and how to be ready.
Eastern Bluebird timing in Ontario
- Arrives
- Around April
- Leaves
- By September
- Status here
- Summer breeder
- Nesting season
- May–August
- Present roughly
- April–September
In Ontario, bluebirds are present through the warm months, arriving around April and heading south again by September.
These windows are set by latitude: Ontario 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
Highlighted months are when bluebirds 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 April is the time to act. Have feeders cleaned, filled and out by early April — the first bluebirds into Ontario are scouting for reliable food, and a station that's ready early gets added to their route.
Bluebirds nest in cavities, so boxes need to be up and cleaned before arrival — a box mounted after they've claimed territories will usually sit empty until next year. Eastern Bluebird nest box dimensions and mounting →
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 bluebirds eat while they're here
- Grasshoppers, crickets and beetles
- Caterpillars and spiders
Bluebirds hunt from perches over short grass. Put mealworm feeders in the open, near a low perch, and offer small amounts at the same time each day.
Full Eastern Bluebird diet guide → · Best feeder for bluebirds →
Native plants that hold bluebirds in Ontario
Food keeps a migrant for a day; habitat keeps it for the season. These Ontario-native plants are known to attract bluebirds:
Early-summer fruit.
Fruit and cover.
Insects, seeds and cavities.
Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.
Dense evergreen roost cover and bluish 'berries' eaten through winter.
Early-summer berries arrive exactly when nestlings are being fed.
Deciduous holly holding red fruit into mid-winter.
Fruit clusters persist all winter as emergency food.
Keep exploring
Frequently asked
When do bluebirds arrive in Ontario?
bluebirds typically arrive in Ontario around April, with nesting underway by May. Timing can shift a week or two with the weather in any given year.
When do bluebirds leave Ontario?
Most bluebirds have left Ontario by September. They spend the winter farther south and return the following spring.
Do bluebirds stay in Ontario all year?
No — in Ontario the Eastern Bluebird is a summer breeder, present roughly April–September. Outside that window it is rarely seen in the state.
What should I put out before bluebirds arrive in Ontario?
Have feeders up and clean by early April — first arrivals scout reliable food sources. Good offerings for this species: grasshoppers, crickets and beetles; caterpillars and spiders.
Sources
- Eastern Bluebird — All About Birds, Cornell Lab of Ornithology
- Eastern Bluebird life history — Cornell Lab of Ornithology
- Eastern Bluebird — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Ontario
- Plant Hardiness Zones of Canada — Natural Resources Canada
- Audubon Native Plants Database
- 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.