Mallards in Ontario
When mallards are present in Ontario, when they nest, which native Ontario plants feed them, and how to host them in a Canadian zones 0a–7a yard.
- Status in Ontario
- Year-round resident
- Nesting window
- April–June
- Broods
- 1 per season
- Hardiness zones
- Canadian zones 0a–7a (southern Ontario roughly equivalent to USDA 4–6)
When to expect mallards in Ontario
Mallards live in Ontario all year. Cold, snowy winters; feeder flocks are dominated by chickadees, nuthatches, woodpeckers and finches. That makes the cold months the time your yard matters most to them.
Humid continental in the south, boreal and subarctic in the north; most backyard birding happens in the southern Great Lakes lowlands.
Nesting in Ontario
Across Ontario, mallards typically nest from April–June. Plan around that window: March for setup, June for clean-out.
Short, warm summers; Point Pelee and Long Point are continent-famous migration sites.
- Mallards don't use nest boxes. Keep dense native shrubs and trees such as sugar maple, paper birch for nest sites.
- Delay heavy pruning of shrubs until after June.
Native Ontario plants that attract mallards
Of the regional native plants we track for Ontario, these 8 provide food or cover mallards use:
Insects, seeds and cavities.
Tubular flowers for hummingbirds and seed heads for finches.
Leave seed heads up through winter for goldfinches.
Prolific seed heads for finches and sparrows.
Late nectar for insects and fall seed for sparrows.
Native bunchgrass; winter seed and ground cover for sparrows and juncos.
Insect-rich in fall and seed in winter.
Catkin seed feeds redpolls and siskins all winter.
Feeding mallards through the Ontario year
- Top foods: Cracked corn, Duck pellets.
- In Ontario's winter: Cold, snowy winters; feeder flocks are dominated by chickadees, nuthatches, woodpeckers and finches.
Frequently asked
Are mallards in Ontario year-round?
Yes. Mallards are year-round residents in Ontario.
When do mallards nest in Ontario?
Nesting in Ontario typically runs April–June, with 1 per season. Clutches are 1–13 eggs, incubated for 23–30 days.
What native plants attract mallards in Ontario?
Sugar maple, Wild bergamot, Purple coneflower, Black-eyed Susan, New England aster, Little bluestem, Tall goldenrod, Paper birch are native plants in Ontario that provide food or cover for mallards.
Mallards in other regions
Other backyard birds in Ontario
Sources
- Mallard — All About Birds, Cornell Lab of Ornithology
- Mallard life history — Cornell Lab of Ornithology
- Mallard — Audubon Guide to North American Birds
- 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.