Delaware · Year-round resident

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.

Barn owls (Tytonidae)Barn OwlTyto alba
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:

Flowering dogwood
Cornus florida · Tree

Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.

Serviceberry
Amelanchier arborea · Tree

Early-summer berries arrive exactly when nestlings are being fed.

White oak
Quercus alba · Tree

Acorns plus hundreds of caterpillar species for nestling food.

Black cherry
Prunus serotina · Tree

Summer fruit and one of the top caterpillar host trees.

American elderberry
Sambucus canadensis · Shrub

Late-summer berry clusters taken by over 40 bird species.

Arrowwood viburnum
Viburnum dentatum · Shrub

Blue-black fall fruit and dense nesting cover.

Spicebush
Lindera benzoin · Shrub

Lipid-rich red fruit fuels fall migrants.

New England aster
Symphyotrichum novae-angliae · Perennial

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

Northern CardinalEastern BluebirdCarolina ChickadeePurple MartinDowny WoodpeckerHairy WoodpeckerAmerican GoldfinchTufted TitmouseWhite-breasted NuthatchHouse WrenHouse FinchPurple FinchRuby-throated HummingbirdCarolina WrenMourning DoveAmerican RobinDark-eyed JuncoWhite-throated SparrowSong SparrowChipping SparrowRed-bellied WoodpeckerNorthern FlickerPileated WoodpeckerRed-headed WoodpeckerYellow-bellied SapsuckerRed-breasted NuthatchBrown-headed NuthatchBrown CreeperCommon GrackleRed-winged BlackbirdBaltimore OrioleOrchard OriolePine SiskinIndigo BuntingEastern TowheeGray CatbirdNorthern MockingbirdBrown ThrasherCedar WaxwingTree SwallowBarn SwallowEastern PhoebeChimney SwiftYellow-rumped WarblerPine WarblerEastern Screech-OwlWood ThrushGreat Crested FlycatcherEastern KingbirdAmerican Tree SparrowHouse SparrowEuropean StarlingWhite-crowned SparrowFox SparrowAmerican CrowCooper's HawkSharp-shinned HawkRed-tailed HawkBarred OwlGreat Horned OwlAmerican KestrelWood DuckWild TurkeyNorthern BobwhiteMallardGreat Blue HeronBelted KingfisherScarlet TanagerEastern MeadowlarkBrown-headed CowbirdRuby-crowned KingletGolden-crowned KingletHermit ThrushWinter WrenRed CrossbillField SparrowGray CatbirdLark SparrowHooded MerganserYellow WarblerCommon YellowthroatAmerican RedstartBlack-and-white WarblerYellow-throated WarblerProthonotary WarblerOvenbirdYellow-breasted ChatRed-eyed VireoWarbling VireoWhite-eyed VireoEastern Wood-PeweeCliff SwallowNorthern Rough-winged SwallowBank SwallowCommon NighthawkEastern Whip-poor-willCanada GooseAmerican CootKilldeerSpotted SandpiperAmerican WoodcockGreen HeronGreat EgretBlack-crowned Night HeronTurkey VultureBlack VultureOspreyBald EagleRed-shouldered HawkMerlinPeregrine FalconNorthern Saw-whet OwlSavannah SparrowSwamp SparrowVesper SparrowHorned LarkBlue GrosbeakWhite-winged CrossbillBrown-headed NuthatchYellow-billed CuckooRusty BlackbirdRock Pigeon

Sources

  1. Barn Owl — All About Birds, Cornell Lab of Ornithology
  2. Barn Owl life history — Cornell Lab of Ornithology
  3. Barn Owl — Audubon Guide to North American Birds
  4. NestWatch nest box plans and species requirements — Cornell Lab
  5. eBird region overview and bar charts — Delaware
  6. USDA Plant Hardiness Zone Map (2023)
  7. 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.