Mallards in Idaho
When mallards are present in Idaho, when they nest, which native Idaho plants feed them, and how to host them in a USDA 3b–7b yard.
- Status in Idaho
- Year-round resident
- Nesting window
- March–June
- Broods
- 1 per season
- Hardiness zones
- USDA 3b–7b
When to expect mallards in Idaho
Mallards live in Idaho all year. Cold winters with inversions in the valleys; mountain finches and Bohemian Waxwings move into towns. That makes the cold months the time your yard matters most to them.
Semi-arid sagebrush plains along the Snake River and forested mountains to the north and center.
Nesting in Idaho
Across Idaho, mallards typically nest from March–June. Plan around that window: February for setup, June for clean-out.
Hot, dry summers in the Snake River Plain and cool mountain summers.
- Mallards don't use nest boxes. Keep dense native shrubs and trees such as paper birch, rabbitbrush for nest sites.
- Delay heavy pruning of shrubs until after June.
Native Idaho plants that attract mallards
Of the regional native plants we track for Idaho, these 8 provide food or cover mallards use:
Tubular flowers for hummingbirds and seed heads for finches.
Prolific seed heads for finches and sparrows.
Annual native sunflower — the original feeder seed.
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.
Nectar-rich in summer, seed for finches in fall.
Late-season bloom supports insects; seed for sparrows.
Feeding mallards through the Idaho year
- Top foods: Cracked corn, Duck pellets.
- In Idaho's winter: Cold winters with inversions in the valleys; mountain finches and Bohemian Waxwings move into towns.
Frequently asked
Are mallards in Idaho year-round?
Yes. Mallards are year-round residents in Idaho.
When do mallards nest in Idaho?
Nesting in Idaho typically runs March–June, with 1 per season. Clutches are 1–13 eggs, incubated for 23–30 days.
What native plants attract mallards in Idaho?
Wild bergamot, Black-eyed Susan, Common sunflower, Little bluestem, Tall goldenrod, Paper birch, Rocky Mountain bee plant, Rabbitbrush are native plants in Idaho that provide food or cover for mallards.
Mallards in other regions
Other backyard birds in Idaho
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 — Idaho
- USDA Plant Hardiness Zone Map (2023)
- 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.