House Wrens in New Brunswick
When house wrens are present in New Brunswick, when they nest, which native New Brunswick plants feed them, and how to host them in a Canada 3a–5b yard.
- Status in New Brunswick
- Summer breeder
- Nesting window
- June–August
- Broods
- 2 per season
- Hardiness zones
- Canada 3a–5b
- 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 New Brunswick
House Wrens are summer residents in New Brunswick, 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.
Humid continental with Bay of Fundy and Gulf of St. Lawrence coastlines and extensive forest.
Nesting in New Brunswick
Across New Brunswick, 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.
Mild summers.
- 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 New Brunswick plants that attract house wrens
Of the regional native plants we track for New Brunswick, these 8 provide food or cover house wrens use:
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.
Feeding house wrens through the New Brunswick 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 New Brunswick's summer: offer water and insect foods; natural food is abundant.
Frequently asked
Are house wrens in New Brunswick year-round?
No. House Wrens are summer breeders in New Brunswick and leave for the winter.
When do house wrens nest in New Brunswick?
Nesting in New Brunswick 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 New Brunswick?
Serviceberry, Bur oak, Black cherry, American elderberry, Arrowwood viburnum, New England aster, Tall goldenrod, Eastern white pine are native plants in New Brunswick 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 New Brunswick
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 — 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.