Chestnut-backed Chickadees in Oregon
When chestnut-backed chickadees 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
- April–June
- Broods
- 1 per season
- Hardiness zones
- USDA 4b–9b
- Nest box
- 1 1/8 in hole, 4 × 4 in floor, 5–15 ft
When to expect chestnut-backed chickadees in Oregon
Chestnut-backed Chickadees 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: their winter diet shifts toward conifer seeds.
Marine west-coast climate west of the Cascades; high desert to the east.
Nesting in Oregon
Across Oregon, chestnut-backed chickadees typically nest from April–June. Nest site: cavity or nest box with a thick fur lining. Females lay 5–7 eggs, incubate for 12–18 days, and young leave the nest after 18–21 days.
Dry summers west of the Cascades; hot days in the high desert.
- Have boxes cleaned and mounted before March — chestnut-backed chickadees begin prospecting ahead of egg-laying.
- Use a 1 1/8 in entrance on a 4 × 4 in floor, mounted 5–15 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 chestnut-backed chickadees
Of the regional native plants we track for Oregon, these 8 provide food or cover chestnut-backed chickadees use:
Insect-rich in fall and seed in winter.
Catkin seed feeds redpolls and siskins all winter.
Dark summer fruit and heavy caterpillar load.
Berry-like cones feed bluebirds, solitaires and waxwings in winter.
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.
Feeding chestnut-backed chickadees through the Oregon year
A bird of wet Pacific conifer forest; forages high in Douglas fir and hemlock.
- Best foods: Black-oil sunflower, Suet.
- In Oregon's winter: Mild, rainy winters in the Willamette Valley; cold, snowy winters east of the Cascades.
Full diet breakdown for chestnut-backed chickadees · Best feeder for chestnut-backed chickadees
Frequently asked
Are chestnut-backed chickadees in Oregon year-round?
Yes. Chestnut-backed Chickadees are year-round residents in Oregon.
When do chestnut-backed chickadees nest in Oregon?
Nesting in Oregon typically runs April–June, with 1 per season. Clutches are 5–7 eggs, incubated for 12–18 days.
What native plants attract chestnut-backed chickadees in Oregon?
Tall goldenrod, Paper birch, Chokecherry, Rocky Mountain juniper, Ponderosa pine, Rabbitbrush, Oregon white oak, Douglas fir are native plants in Oregon that provide food or cover for chestnut-backed chickadees.
What size birdhouse hole do chestnut-backed chickadees need?
1 1/8 in, with a floor of 4 × 4 in mounted 5–15 ft.
Chestnut-backed Chickadees in other regions
Other backyard birds in Oregon
Sources
- Chestnut-backed Chickadee — All About Birds, Cornell Lab of Ornithology
- Chestnut-backed Chickadee life history — Cornell Lab of Ornithology
- Chestnut-backed Chickadee — 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.