When do northern rough-winged swallows arrive in Alberta?
The Northern Rough-winged Swallow is a summer breeder in Alberta — here is when to expect it, when it leaves, and how to be ready.
Northern Rough-winged Swallow timing in Alberta
- Arrives
- Around April
- Leaves
- By August
- Status here
- Summer breeder
- Nesting season
- May–July
- Present roughly
- April–August
In Alberta, northern rough-winged swallows are present through the warm months, arriving around April and heading south again by August.
These windows are set by latitude: Alberta 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 northern rough-winged swallows are expected in Alberta. 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 northern rough-winged swallows into Alberta 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 northern rough-winged swallows eat while they're here
- Flies, midges, beetles and winged ants
Nests in drainpipes, culverts and bank holes rather than colonies; often the first swallow over a pond.
Full Northern Rough-winged Swallow diet guide → · Best feeder for northern rough-winged swallows →
Native plants that hold northern rough-winged swallows in Alberta
Food keeps a migrant for a day; habitat keeps it for the season. These Alberta-native plants are known to attract northern rough-winged swallows:
Catkin seed feeds redpolls and siskins all winter.
Dark summer fruit and heavy caterpillar load.
Late-season bloom supports insects; seed for sparrows.
Seed for crossbills, siskins and chickadees.
Spruce-budworm habitat and dense winter roosting cover.
Cone crops drive winter irruptions of finches and crossbills.
Deciduous conifer with small cones for siskins and redpolls.
Early catkins draw insects for arriving warblers and hummingbirds.
Keep exploring
Frequently asked
When do northern rough-winged swallows arrive in Alberta?
northern rough-winged swallows typically arrive in Alberta around April, with nesting underway by May. Timing can shift a week or two with the weather in any given year.
When do northern rough-winged swallows leave Alberta?
Most northern rough-winged swallows have left Alberta by August. They spend the winter farther south and return the following spring.
Do northern rough-winged swallows stay in Alberta all year?
No — in Alberta the Northern Rough-winged Swallow is a summer breeder, present roughly April–August. Outside that window it is rarely seen in the state.
What should I put out before northern rough-winged swallows arrive in Alberta?
Have feeders up and clean by early April — first arrivals scout reliable food sources. Good offerings for this species: flies, midges, beetles and winged ants.
Sources
- Northern Rough-winged Swallow — All About Birds, Cornell Lab of Ornithology
- Northern Rough-winged Swallow life history — Cornell Lab of Ornithology
- Northern Rough-winged Swallow — Audubon Guide to North American Birds
- eBird region overview and bar charts — Alberta
- 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.