Common Grackles in Wyoming
When grackles 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
- Summer breeder
- Nesting window
- May–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 3a–5b
When to expect grackles in Wyoming
Common Grackles are summer residents in Wyoming, arriving shortly before nesting begins in May and leaving after the young are independent. Through the season they feed on beetles, grasshoppers and earthworms.
Semi-arid high plains and basins with major mountain ranges; most towns lie above 5,000 ft.
Nesting in Wyoming
Across Wyoming, grackles typically nest from May–June. Nest site: bulky cup in dense conifers, often in loose colonies. Females lay 4–6 eggs, incubate for 13–14 days, and young leave the nest after 12–15 days.
Short, warm summers with cool nights.
- Common Grackles don't use nest boxes. Keep dense native shrubs and trees such as bur oak, gambel oak for nest sites.
- Delay heavy pruning of shrubs until after June.
Native Wyoming plants that attract grackles
Of the regional native plants we track for Wyoming, these 8 provide food or cover grackles use:
Drought-hardy prairie oak with large acorns and a heavy insect load.
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.
Acorns for jays and woodpeckers across the southern Rockies.
Feeding grackles through the Wyoming year
Grackles arrive in flocks and can dominate open feeders; weight-activated and caged feeders help keep smaller birds fed.
- Best foods: Cracked corn, Sunflower.
- In Wyoming's summer: offer water and insect foods; natural food is abundant.
Frequently asked
Are grackles in Wyoming year-round?
No. Common Grackles are summer breeders in Wyoming and leave for the winter.
When do grackles nest in Wyoming?
Nesting in Wyoming typically runs May–June, with 1–2 per season. Clutches are 4–6 eggs, incubated for 13–14 days.
What native plants attract grackles in Wyoming?
Bur oak, Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Gambel oak are native plants in Wyoming that provide food or cover for grackles.
Common Grackles in other regions
Other backyard birds in Wyoming
Sources
- Common Grackle — All About Birds, Cornell Lab of Ornithology
- Common Grackle life history — Cornell Lab of Ornithology
- Common Grackle — 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.