Alaska · Summer breeder

Cliff Swallows in Alaska

When cliff swallows are present in Alaska, when they nest, which native Alaska plants feed them, and how to host them in a USDA 1a–8a yard.

Swallows (Hirundinidae)Cliff SwallowPetrochelidon pyrrhonota

Status in Alaska: Summer breeder
Nesting window: June–July
Broods: 1–2 per season
Hardiness zones: USDA 1a–8a

When to expect cliff swallows in Alaska

Cliff Swallows are summer residents in Alaska, arriving shortly before nesting begins in June and leaving after the young are independent.

Subarctic interior, temperate rainforest in the Southeast panhandle, and Arctic tundra on the North Slope.

Nesting in Alaska

Across Alaska, cliff swallows typically nest from June–July. Plan around that window: May for setup, July for clean-out.

A short, explosive summer with near-continuous daylight compresses nesting into a few weeks.

Cliff Swallows don't use nest boxes. Keep dense native shrubs and trees such as paper birch, white spruce, tamarack for nest sites.
Delay heavy pruning of shrubs until after July.

Native Alaska plants that attract cliff swallows

Of the regional native plants we track for Alaska, these 5 provide food or cover cliff swallows use:

Paper birch

Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all winter.

White spruce

Picea glauca · Tree

Cone crops drive winter irruptions of finches and crossbills.

Tamarack

Larix laricina · Tree

Deciduous conifer with small cones for siskins and redpolls.

Willow (Bebb)

Salix bebbiana · Shrub

Early catkins draw insects for arriving warblers and hummingbirds.

Dwarf birch

Betula glandulosa · Shrub

Catkin seed for redpolls on the tundra.

Feeding cliff swallows through the Alaska year

Top foods: Crushed eggshell or oyster grit (for nest minerals).
In Alaska'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 Alaska year-round?

No. Cliff Swallows are summer breeders in Alaska and leave for the winter.

When do cliff swallows nest in Alaska?

Nesting in Alaska typically runs June–July, with 1–2 per season. Clutches are 1–6 eggs, incubated for 10–19 days.

What native plants attract cliff swallows in Alaska?

Paper birch, White spruce, Tamarack, Willow (Bebb), Dwarf birch are native plants in Alaska that provide food or cover for cliff swallows.

Other backyard birds in Alaska

Black-capped Chickadee Downy Woodpecker Hairy Woodpecker American Robin Dark-eyed Junco Song Sparrow Chipping Sparrow Northern Flicker Yellow-bellied Sapsucker Red-breasted Nuthatch Red-winged Blackbird Pine Siskin Common Redpoll Cedar Waxwing Tree Swallow Barn Swallow Yellow-rumped Warbler American Tree Sparrow Steller's Jay Black-billed Magpie Canada Jay Chestnut-backed Chickadee Rufous Hummingbird Mountain Bluebird Say's Phoebe White-crowned Sparrow Golden-crowned Sparrow Fox Sparrow Varied Thrush Violet-green Swallow Common Raven Sharp-shinned Hawk Great Horned Owl American Kestrel Mallard Belted Kingfisher Ruby-crowned Kinglet Golden-crowned Kinglet Hermit Thrush Winter Wren Pine Grosbeak Red Crossbill Yellow Warbler Common Yellowthroat American Redstart Orange-crowned Warbler Palm Warbler Warbling Vireo Least Flycatcher Bank Swallow Common Nighthawk Canada Goose Killdeer Spotted Sandpiper Osprey Bald Eagle Merlin Peregrine Falcon Northern Saw-whet Owl Black-backed Woodpecker American Three-toed Woodpecker Savannah Sparrow Swamp Sparrow Vesper Sparrow Snow Bunting Lapland Longspur Horned Lark Common Redpoll Hoary Redpoll White-winged Crossbill Gray-crowned Rosy-Finch Bohemian Waxwing Rusty Blackbird Rock Pigeon

Sources

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.