Cliff Swallows in Oregon
When cliff swallows 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
- Summer breeder
- Nesting window
- May–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 4b–9b
When to expect cliff swallows in Oregon
Cliff Swallows are summer residents in Oregon, arriving shortly before nesting begins in May and leaving after the young are independent.
Marine west-coast climate west of the Cascades; high desert to the east.
Nesting in Oregon
Across Oregon, cliff swallows typically nest from May–July. Plan around that window: April for setup, July for clean-out.
Dry summers west of the Cascades; hot days in the high desert.
- Cliff Swallows don't use nest boxes. Keep dense native shrubs and trees such as paper birch, chokecherry, ponderosa pine for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Oregon plants that attract cliff swallows
Of the regional native plants we track for Oregon, these 8 provide food or cover cliff swallows 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 cliff swallows through the Oregon year
- Top foods: Crushed eggshell or oyster grit (for nest minerals).
- In Oregon's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for cliff swallows · Best feeder for cliff swallows
Frequently asked
Are cliff swallows in Oregon year-round?
No. Cliff Swallows are summer breeders in Oregon and leave for the winter.
When do cliff swallows nest in Oregon?
Nesting in Oregon typically runs May–July, with 1–2 per season. Clutches are 1–6 eggs, incubated for 10–19 days.
What native plants attract cliff swallows 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 cliff swallows.
Cliff Swallows in other regions
Other backyard birds in Oregon
Sources
- Cliff Swallow — All About Birds, Cornell Lab of Ornithology
- Cliff Swallow life history — Cornell Lab of Ornithology
- Cliff Swallow — Audubon Guide to North American Birds
- 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.