Common Grackles in Tennessee
When grackles are present in Tennessee, when they nest, which native Tennessee plants feed them, and how to host them in a USDA 6a–8a yard.
- Status in Tennessee
- Year-round resident
- Nesting window
- April–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 6a–8a
When to expect grackles in Tennessee
Common Grackles live in Tennessee all year. Moderate winters; high elevations in the Smokies hold northern species year-round. That makes the cold months the time your yard matters most to them: their winter diet shifts toward waste grain and acorns.
Humid subtropical, from the Great Smoky Mountains to the Mississippi River floodplain.
Nesting in Tennessee
Across Tennessee, grackles typically nest from April–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.
Hot, humid summers in the valleys.
- Common Grackles don't use nest boxes. Keep dense native shrubs and trees such as white oak, bur oak for nest sites.
- Delay heavy pruning of shrubs until after June.
Native Tennessee plants that attract grackles
Of the regional native plants we track for Tennessee, these 8 provide food or cover grackles use:
Acorns plus hundreds of caterpillar species for nestling food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
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.
Feeding grackles through the Tennessee 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 Tennessee's winter: Moderate winters; high elevations in the Smokies hold northern species year-round.
Frequently asked
Are grackles in Tennessee year-round?
Yes. Common Grackles are year-round residents in Tennessee.
When do grackles nest in Tennessee?
Nesting in Tennessee typically runs April–June, with 1–2 per season. Clutches are 4–6 eggs, incubated for 13–14 days.
What native plants attract grackles in Tennessee?
White oak, Bur oak, Wild bergamot, Purple coneflower, Black-eyed Susan, New England aster, Little bluestem, Tall goldenrod are native plants in Tennessee that provide food or cover for grackles.
Common Grackles in other regions
Other backyard birds in Tennessee
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 — Tennessee
- 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.