When do chimney swifts arrive in New Brunswick?
The Chimney Swift is a summer breeder in New Brunswick — here is when to expect it, when it leaves, and how to be ready.
Chimney Swift timing in New Brunswick
- Arrives
- Around May
- Leaves
- By August
- Status here
- Summer breeder
- Nesting season
- June–July
- Present roughly
- May–August
In New Brunswick, chimney swifts are present through the warm months, arriving around May and heading south again by August.
These windows are set by latitude: New Brunswick 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
Highlighted months are when chimney swifts are expected in New Brunswick. 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. This species doesn't use feeders much, but water and cover matter — a clean birdbath and undisturbed shrubs make a yard far more attractive to a newly arrived bird.
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 chimney swifts eat while they're here
- Flies, beetles, ants and aphids in flight
Leave an uncapped masonry chimney open April–October, or build a swift tower; populations have fallen by roughly two-thirds since 1966.
Native plants that hold chimney swifts in New Brunswick
Food keeps a migrant for a day; habitat keeps it for the season. These New Brunswick-native plants are known to attract chimney swifts:
Early-summer berries arrive exactly when nestlings are being fed.
Drought-hardy prairie oak with large acorns and a heavy insect load.
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Blue-black fall fruit and dense nesting cover.
Late nectar for insects and fall seed for sparrows.
Insect-rich in fall and seed in winter.
Seed-rich cones and year-round shelter.
Keep exploring
Frequently asked
When do chimney swifts arrive in New Brunswick?
chimney swifts typically arrive in New Brunswick around May, with nesting underway by June. Timing can shift a week or two with the weather in any given year.
When do chimney swifts leave New Brunswick?
Most chimney swifts have left New Brunswick by August. They spend the winter farther south and return the following spring.
Do chimney swifts stay in New Brunswick all year?
No — in New Brunswick the Chimney Swift is a summer breeder, present roughly May–August. Outside that window it is rarely seen in the state.
Sources
- Chimney Swift — All About Birds, Cornell Lab of Ornithology
- Chimney Swift life history — Cornell Lab of Ornithology
- Chimney Swift — Audubon Guide to North American Birds
- eBird region overview and bar charts — New Brunswick
- Plant Hardiness Zones of Canada — Natural Resources Canada
- 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.