Swamp Sparrows in Pennsylvania
When swamp sparrows are present in Pennsylvania, when they nest, which native Pennsylvania plants feed them, and how to host them in a USDA 5a–7b yard.
- Status in Pennsylvania
- Summer breeder
- Nesting window
- May–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 5a–7b
When to expect swamp sparrows in Pennsylvania
Swamp Sparrows are summer residents in Pennsylvania, arriving shortly before nesting begins in May and leaving after the young are independent.
Humid continental; cold, snowy winters in the north and mountains, milder in the southeast.
Nesting in Pennsylvania
Across Pennsylvania, swamp sparrows typically nest from May–July. Plan around that window: April for setup, July for clean-out.
Warm summers; bluebirds typically raise two broods.
- Swamp Sparrows don't use nest boxes. Keep dense native shrubs and trees such as black cherry, white oak, flowering dogwood for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Pennsylvania plants that attract swamp sparrows
Of the regional native plants we track for Pennsylvania, these 8 provide food or cover swamp sparrows use:
Summer fruit and a major caterpillar host.
Acorns and insects.
Fall seed.
Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.
Early-summer berries arrive exactly when nestlings are being fed.
Drought-hardy prairie oak with large acorns and a heavy insect load.
Late-summer berry clusters taken by over 40 bird species.
Blue-black fall fruit and dense nesting cover.
Feeding swamp sparrows through the Pennsylvania year
- Top foods: Millet, Hulled sunflower (on the ground).
- In Pennsylvania'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 Pennsylvania year-round?
No. Swamp Sparrows are summer breeders in Pennsylvania and leave for the winter.
When do swamp sparrows nest in Pennsylvania?
Nesting in Pennsylvania typically runs May–July, with 1–2 per season. Clutches are 1–6 eggs, incubated for 12–15 days.
What native plants attract swamp sparrows in Pennsylvania?
Black cherry, White oak, New England aster, Flowering dogwood, Serviceberry, Bur oak, American elderberry, Arrowwood viburnum are native plants in Pennsylvania that provide food or cover for swamp sparrows.
Swamp Sparrows in other regions
Other backyard birds in Pennsylvania
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 — Pennsylvania
- 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.