Eastern Screech-Owls in Delaware
When eastern screech-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
- March–May
- Broods
- 1 per season
- Hardiness zones
- USDA 7a–8a
- Nest box
- 3 in hole, 8 × 8 in floor, 10–30 ft
When to expect eastern screech-owls in Delaware
Eastern Screech-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: their winter diet shifts toward mice and roosting birds.
Humid subtropical to temperate coastal plain between Delaware Bay and the Atlantic.
Nesting in Delaware
Across Delaware, eastern screech-owls typically nest from March–May. Nest site: tree cavity or nest box with wood-chip base. Females lay 2–6 eggs, incubate for 26–34 days, and young leave the nest after about 28 days.
Hot, humid summers; bay-shore woodlots are important migrant stopovers in May.
- Have boxes cleaned and mounted before February — eastern screech-owls begin prospecting ahead of egg-laying.
- Use a 3 in entrance on a 8 × 8 in floor, mounted 10–30 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 May.
Native Delaware plants that attract eastern screech-owls
Of the regional native plants we track for Delaware, these 8 provide food or cover eastern screech-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 eastern screech-owls through the Delaware year
Screech-owls roost in nest boxes by day; a box on a large tree 10–30 ft up is often used year after year.
- Best foods: .
- In Delaware's winter: Mild winters with modest snow; coastal marshes draw huge numbers of wintering sparrows and blackbirds.
Frequently asked
Are eastern screech-owls in Delaware year-round?
Yes. Eastern Screech-Owls are year-round residents in Delaware.
When do eastern screech-owls nest in Delaware?
Nesting in Delaware typically runs March–May, with 1 per season. Clutches are 2–6 eggs, incubated for 26–34 days.
What native plants attract eastern screech-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 eastern screech-owls.
What size birdhouse hole do eastern screech-owls need?
3 in, with a floor of 8 × 8 in mounted 10–30 ft.
Eastern Screech-Owls in other regions
Other backyard birds in Delaware
Sources
- Eastern Screech-Owl — All About Birds, Cornell Lab of Ornithology
- Eastern Screech-Owl life history — Cornell Lab of Ornithology
- Eastern Screech-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.