Red-winged Blackbirds in Connecticut
When red-winged blackbirds are present in Connecticut, when they nest, which native Connecticut plants feed them, and how to host them in a USDA 5b–7b yard.
- Status in Connecticut
- Summer breeder
- Nesting window
- April–July
- Broods
- 2–3 per season
- Hardiness zones
- USDA 5b–7b
When to expect red-winged blackbirds in Connecticut
Red-winged Blackbirds are summer residents in Connecticut, arriving shortly before nesting begins in April and leaving after the young are independent. Through the season they feed on dragonflies, beetles and caterpillars.
Humid continental with maritime moderation along Long Island Sound.
Nesting in Connecticut
Across Connecticut, red-winged blackbirds typically nest from April–July. Nest site: woven cup lashed to cattails or shrubs over water. Females lay 2–4 eggs, incubate for 11–13 days, and young leave the nest after 11–14 days.
Warm, humid summers; peak nesting runs May through July.
- Red-winged Blackbirds don't use nest boxes. Keep dense native shrubs and trees such as flowering dogwood, serviceberry, white oak for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Connecticut plants that attract red-winged blackbirds
Of the regional native plants we track for Connecticut, these 8 provide food or cover red-winged blackbirds use:
Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.
Early-summer berries arrive exactly when nestlings are being fed.
Acorns plus hundreds of caterpillar species for nestling food.
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Blue-black fall fruit and dense nesting cover.
Lipid-rich red fruit fuels fall migrants.
Tubular flowers for hummingbirds and seed heads for finches.
Feeding red-winged blackbirds through the Connecticut year
One of the earliest spring returns in the north; males arrive weeks before females to claim marsh territories.
- Best foods: Cracked corn, Millet, Sunflower.
- In Connecticut's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for red-winged blackbirds · Best feeder for red-winged blackbirds
Frequently asked
Are red-winged blackbirds in Connecticut year-round?
No. Red-winged Blackbirds are summer breeders in Connecticut and leave for the winter.
When do red-winged blackbirds nest in Connecticut?
Nesting in Connecticut typically runs April–July, with 2–3 per season. Clutches are 2–4 eggs, incubated for 11–13 days.
What native plants attract red-winged blackbirds in Connecticut?
Flowering dogwood, Serviceberry, White oak, Black cherry, American elderberry, Arrowwood viburnum, Spicebush, Wild bergamot are native plants in Connecticut that provide food or cover for red-winged blackbirds.
Red-winged Blackbirds in other regions
Other backyard birds in Connecticut
Sources
- Red-winged Blackbird — All About Birds, Cornell Lab of Ornithology
- Red-winged Blackbird life history — Cornell Lab of Ornithology
- Red-winged Blackbird — Audubon Guide to North American Birds
- eBird region overview and bar charts — Connecticut
- 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.