House Wrens in Alberta
When house wrens are present in Alberta, when they nest, which native Alberta plants feed them, and how to host them in a Canada 2a–4b yard.
- Status in Alberta
- Summer breeder
- Nesting window
- June–August
- Broods
- 2 per season
- Hardiness zones
- Canada 2a–4b
- Nest box
- 1 to 1 1/8 in round hole, 4 × 4 in floor, 5–10 ft near shrubs
When to expect house wrens in Alberta
House Wrens are summer residents in Alberta, arriving shortly before nesting begins in June and leaving after the young are independent. Through the season they feed on beetles, caterpillars and crickets; spiders and flies.
Continental — prairie in the southeast, aspen parkland in the center, boreal forest in the north and the Rockies in the west.
Nesting in Alberta
Across Alberta, house wrens typically nest from June–August. Nest site: almost any cavity — boxes, gourds, even boots and flowerpots; males build several stick-filled dummy nests. Females lay 3–10 eggs, incubate for 9–16 days, and young leave the nest after 15–17 days.
Warm, sunny summers with long days.
- Have boxes cleaned and mounted before May — house wrens begin prospecting ahead of egg-laying.
- Use a 1 to 1 1/8 in round entrance on a 4 × 4 in floor, mounted 5–10 ft near shrubs.
- Fit a pole baffle or hole guard; ventilation gaps and drainage holes are essential.
- Clean out old nests after each brood and again after August.
Native Alberta plants that attract house wrens
Of the regional native plants we track for Alberta, these 8 provide food or cover house wrens use:
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.
Feeding house wrens through the Alberta year
House wrens rarely visit feeders. They are attracted by brush piles, insect-rich plantings and nest boxes placed near shrub cover.
- Best foods: Mealworms (occasionally).
- Avoid: Seed — house wrens do not eat it.
- In Alberta's summer: offer water and insect foods; natural food is abundant.
Frequently asked
Are house wrens in Alberta year-round?
No. House Wrens are summer breeders in Alberta and leave for the winter.
When do house wrens nest in Alberta?
Nesting in Alberta typically runs June–August, with 2 per season. Clutches are 3–10 eggs, incubated for 9–16 days.
What native plants attract house wrens in Alberta?
Paper birch, Chokecherry, Rabbitbrush, Douglas fir, Balsam fir, White spruce, Tamarack, Willow (Bebb) are native plants in Alberta that provide food or cover for house wrens.
What size birdhouse hole do house wrens need?
1 to 1 1/8 in round, with a floor of 4 × 4 in mounted 5–10 ft near shrubs.
House Wrens in other regions
Other backyard birds in Alberta
Sources
- House Wren — All About Birds, Cornell Lab of Ornithology
- House Wren life history — Cornell Lab of Ornithology
- House Wren — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- 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.