Swamp Sparrows in Maine
When swamp sparrows are present in Maine, when they nest, which native Maine plants feed them, and how to host them in a USDA 3b–6b yard.
- Status in Maine
- Summer breeder
- Nesting window
- June–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 3b–6b
When to expect swamp sparrows in Maine
Swamp Sparrows are summer residents in Maine, arriving shortly before nesting begins in June and leaving after the young are independent.
Humid continental with a long, rocky Atlantic coast and extensive northern spruce-fir forest.
Nesting in Maine
Across Maine, swamp sparrows typically nest from June–July. Plan around that window: May for setup, July for clean-out.
Cool, short summers; many songbirds do not begin nesting until late May.
- Swamp Sparrows don't use nest boxes. Keep dense native shrubs and trees such as serviceberry, white oak, bur oak for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Maine plants that attract swamp sparrows
Of the regional native plants we track for Maine, these 8 provide food or cover swamp sparrows use:
Early-summer berries arrive exactly when nestlings are being fed.
Acorns plus hundreds of caterpillar species for nestling food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
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 swamp sparrows through the Maine year
- Top foods: Millet, Hulled sunflower (on the ground).
- In Maine's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for swamp sparrows · Best feeder for swamp sparrows
Frequently asked
Are swamp sparrows in Maine year-round?
No. Swamp Sparrows are summer breeders in Maine and leave for the winter.
When do swamp sparrows nest in Maine?
Nesting in Maine typically runs June–July, with 1–2 per season. Clutches are 1–6 eggs, incubated for 12–15 days.
What native plants attract swamp sparrows in Maine?
Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Arrowwood viburnum, Spicebush, Wild bergamot are native plants in Maine that provide food or cover for swamp sparrows.
Swamp Sparrows in other regions
Other backyard birds in Maine
Sources
- Swamp Sparrow — All About Birds, Cornell Lab of Ornithology
- Swamp Sparrow life history — Cornell Lab of Ornithology
- Swamp Sparrow — Audubon Guide to North American Birds
- eBird region overview and bar charts — Maine
- 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.