Mallards in Oregon
When mallards are present in Oregon, when they nest, which native Oregon plants feed them, and how to host them in a USDA 4b–9b yard.
- Status in Oregon
- Year-round resident
- Nesting window
- March–June
- Broods
- 1 per season
- Hardiness zones
- USDA 4b–9b
When to expect mallards in Oregon
Mallards live in Oregon all year. Mild, rainy winters in the Willamette Valley; cold, snowy winters east of the Cascades. That makes the cold months the time your yard matters most to them.
Marine west-coast climate west of the Cascades; high desert to the east.
Nesting in Oregon
Across Oregon, mallards typically nest from March–June. Plan around that window: February for setup, June for clean-out.
Dry summers west of the Cascades; hot days in the high desert.
- 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 Oregon plants that attract mallards
Of the regional native plants we track for Oregon, 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 Oregon year
- Top foods: Cracked corn, Duck pellets.
- In Oregon's winter: Mild, rainy winters in the Willamette Valley; cold, snowy winters east of the Cascades.
Frequently asked
Are mallards in Oregon year-round?
Yes. Mallards are year-round residents in Oregon.
When do mallards nest in Oregon?
Nesting in Oregon typically runs March–June, with 1 per season. Clutches are 1–13 eggs, incubated for 23–30 days.
What native plants attract mallards in Oregon?
Wild bergamot, Black-eyed Susan, Common sunflower, Little bluestem, Tall goldenrod, Paper birch, Rocky Mountain bee plant, Rabbitbrush are native plants in Oregon that provide food or cover for mallards.
Mallards in other regions
Other backyard birds in Oregon
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 — Oregon
- 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.