Mallards in Wyoming
When mallards are present in Wyoming, when they nest, which native Wyoming plants feed them, and how to host them in a USDA 3a–5b yard.
- Status in Wyoming
- Year-round resident
- Nesting window
- April–June
- Broods
- 1 per season
- Hardiness zones
- USDA 3a–5b
When to expect mallards in Wyoming
Mallards live in Wyoming all year. Cold, very windy winters. That makes the cold months the time your yard matters most to them.
Semi-arid high plains and basins with major mountain ranges; most towns lie above 5,000 ft.
Nesting in Wyoming
Across Wyoming, mallards typically nest from April–June. Plan around that window: March for setup, June for clean-out.
Short, warm summers with cool nights.
- Mallards don't use nest boxes. Keep dense native shrubs and trees such as rabbitbrush for nest sites.
- Delay heavy pruning of shrubs until after June.
Native Wyoming plants that attract mallards
Of the regional native plants we track for Wyoming, 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.
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.
Nectar-rich in summer, seed for finches in fall.
Late-season bloom supports insects; seed for sparrows.
Feeding mallards through the Wyoming year
- Top foods: Cracked corn, Duck pellets.
- In Wyoming's winter: Cold, very windy winters.
Frequently asked
Are mallards in Wyoming year-round?
Yes. Mallards are year-round residents in Wyoming.
When do mallards nest in Wyoming?
Nesting in Wyoming typically runs April–June, with 1 per season. Clutches are 1–13 eggs, incubated for 23–30 days.
What native plants attract mallards in Wyoming?
Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Rocky Mountain bee plant, Rabbitbrush are native plants in Wyoming that provide food or cover for mallards.
Mallards in other regions
Other backyard birds in Wyoming
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 — Wyoming
- 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.