Barn Owls in Delaware
When barn owls are present in Delaware, when they nest, which native Delaware plants feed them, and how to host them in a USDA 7a–8a yard.
- Status in Delaware
- Year-round resident
- Nesting window
- January–December
- Broods
- 1–3 per season
- Hardiness zones
- USDA 7a–8a
- Nest box
- 6 in hole, 16 × 24 in floor, 10–20 ft
When to expect barn owls in Delaware
Barn Owls live in Delaware all year. Mild winters with modest snow; coastal marshes draw huge numbers of wintering sparrows and blackbirds. That makes the cold months the time your yard matters most to them.
Humid subtropical to temperate coastal plain between Delaware Bay and the Atlantic.
Nesting in Delaware
Across Delaware, barn owls typically nest from January–December. Plan around that window: January for setup, December for clean-out.
Hot, humid summers; bay-shore woodlots are important migrant stopovers in May.
- Have boxes cleaned and mounted before January — barn owls begin prospecting ahead of egg-laying.
- Use a 6 in entrance on a 16 × 24 in floor, mounted 10–20 ft.
- Fit a pole baffle or hole guard; ventilation gaps and drainage holes are essential.
- Clean out old nests after each brood and again after December.
Native Delaware plants that attract barn owls
Of the regional native plants we track for Delaware, these 8 provide food or cover barn owls 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.
Late nectar for insects and fall seed for sparrows.
Feeding barn owls through the Delaware year
- Top foods: None — a large barn-owl box on a pole or barn is the draw.
- In Delaware's winter: Mild winters with modest snow; coastal marshes draw huge numbers of wintering sparrows and blackbirds.
Full diet breakdown for barn owls · Best feeder for barn owls
Frequently asked
Are barn owls in Delaware year-round?
Yes. Barn Owls are year-round residents in Delaware.
When do barn owls nest in Delaware?
Nesting in Delaware typically runs January–December, with 1–3 per season. Clutches are 2–18 eggs, incubated for 29–34 days.
What native plants attract barn owls in Delaware?
Flowering dogwood, Serviceberry, White oak, Black cherry, American elderberry, Arrowwood viburnum, Spicebush, New England aster are native plants in Delaware that provide food or cover for barn owls.
What size birdhouse hole do barn owls need?
6 in, with a floor of 16 × 24 in mounted 10–20 ft.
Barn Owls in other regions
Other backyard birds in Delaware
Sources
- Barn Owl — All About Birds, Cornell Lab of Ornithology
- Barn Owl life history — Cornell Lab of Ornithology
- Barn Owl — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Delaware
- 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.