Western Screech-Owls in Oregon
When western screech-owls are present in Oregon, when they nest, which native Oregon plants feed them, and how to host them in a USDA 4b–9b yard.
- Status in Oregon
- Year-round resident
- Nesting window
- March–June
- Broods
- 1 per season
- Hardiness zones
- USDA 4b–9b
- Nest box
- 3 in hole, 8 × 8 in floor, 10–30 ft
When to expect western screech-owls in Oregon
Western Screech-Owls live in Oregon all year. Mild, rainy winters in the Willamette Valley; cold, snowy winters east of the Cascades. That makes the cold months the time your yard matters most to them.
Marine west-coast climate west of the Cascades; high desert to the east.
Nesting in Oregon
Across Oregon, western screech-owls typically nest from March–June. Plan around that window: February for setup, June for clean-out.
Dry summers west of the Cascades; hot days in the high desert.
- Have boxes cleaned and mounted before February — western 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 June.
Native Oregon plants that attract western screech-owls
Of the regional native plants we track for Oregon, these 8 provide food or cover western screech-owls use:
Insect-rich in fall and seed in winter.
Catkin seed feeds redpolls and siskins all winter.
Dark summer fruit and heavy caterpillar load.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Late-season bloom supports insects; seed for sparrows.
Acorns and a rich insect community in the Pacific Northwest.
Seed for crossbills, siskins and chickadees.
Early catkins draw insects for arriving warblers and hummingbirds.
Feeding western screech-owls through the Oregon year
- Top foods: None — a nest box and mature trees are the draw.
- In Oregon's winter: Mild, rainy winters in the Willamette Valley; cold, snowy winters east of the Cascades.
Full diet breakdown for western screech-owls · Best feeder for western screech-owls
Frequently asked
Are western screech-owls in Oregon year-round?
Yes. Western Screech-Owls are year-round residents in Oregon.
When do western screech-owls nest in Oregon?
Nesting in Oregon typically runs March–June, with 1 per season. Clutches are 1–7 eggs, incubated for 21–30 days.
What native plants attract western screech-owls in Oregon?
Tall goldenrod, Paper birch, Chokecherry, Ponderosa pine, Rabbitbrush, Oregon white oak, Douglas fir, Willow (Bebb) are native plants in Oregon that provide food or cover for western screech-owls.
What size birdhouse hole do western screech-owls need?
3 in, with a floor of 8 × 8 in mounted 10–30 ft.
Western Screech-Owls in other regions
Other backyard birds in Oregon
Sources
- Western Screech-Owl — All About Birds, Cornell Lab of Ornithology
- Western Screech-Owl life history — Cornell Lab of Ornithology
- Western Screech-Owl — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Oregon
- 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.