Colorado · Summer breeder

Savannah Sparrows in Colorado

When savannah sparrows are present in Colorado, when they nest, which native Colorado plants feed them, and how to host them in a USDA 3a–7b yard.

New World sparrows (Passerellidae)Savannah SparrowPasserculus sandwichensis
Status in Colorado
Summer breeder
Nesting window
May–July
Broods
1–3 per season
Hardiness zones
USDA 3a–7b

When to expect savannah sparrows in Colorado

Savannah Sparrows are summer residents in Colorado, arriving shortly before nesting begins in May and leaving after the young are independent.

Semi-arid high plains in the east and the Rocky Mountains through the center, with most backyards between 5,000 and 7,000 ft.

Nesting in Colorado

Across Colorado, savannah sparrows typically nest from May–July. Plan around that window: April for setup, July for clean-out.

Warm, dry days and cool nights; afternoon storms are common in July and August.

  • Savannah Sparrows don't use nest boxes. Keep dense native shrubs and trees such as rabbitbrush for nest sites.
  • Delay heavy pruning of shrubs until after July.

Native Colorado plants that attract savannah sparrows

Of the regional native plants we track for Colorado, these 8 provide food or cover savannah sparrows use:

Wild bergamot
Monarda fistulosa · Perennial

Tubular flowers for hummingbirds and seed heads for finches.

Black-eyed Susan
Rudbeckia hirta · Perennial

Prolific seed heads for finches and sparrows.

Common sunflower
Helianthus annuus · Perennial

Annual native sunflower — the original feeder seed.

New England aster
Symphyotrichum novae-angliae · Perennial

Late nectar for insects and fall seed for sparrows.

Little bluestem
Schizachyrium scoparium · Perennial

Native bunchgrass; winter seed and ground cover for sparrows and juncos.

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Rocky Mountain bee plant
Cleome serrulata · Perennial

Nectar-rich in summer, seed for finches in fall.

Rabbitbrush
Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Feeding savannah sparrows through the Colorado year

  • Top foods: Millet, Cracked corn.
  • In Colorado's summer: offer water and insect foods; natural food is abundant.

Full diet breakdown for savannah sparrows · Best feeder for savannah sparrows

Frequently asked

Are savannah sparrows in Colorado year-round?

No. Savannah Sparrows are summer breeders in Colorado and leave for the winter.

When do savannah sparrows nest in Colorado?

Nesting in Colorado typically runs May–July, with 1–3 per season. Clutches are 2–6 eggs, incubated for 10–13 days.

What native plants attract savannah sparrows in Colorado?

Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Rocky Mountain bee plant, Rabbitbrush are native plants in Colorado that provide food or cover for savannah sparrows.

Savannah Sparrows in other regions

Other backyard birds in Colorado

Black-capped ChickadeeDowny WoodpeckerHairy WoodpeckerAmerican GoldfinchWhite-breasted NuthatchHouse WrenHouse FinchMourning DoveAmerican RobinDark-eyed JuncoSong SparrowChipping SparrowNorthern FlickerRed-breasted NuthatchBrown CreeperCommon GrackleRed-winged BlackbirdEvening GrosbeakPine SiskinIndigo BuntingGray CatbirdNorthern MockingbirdBrown ThrasherCedar WaxwingTree SwallowBarn SwallowYellow-rumped WarblerEastern Screech-OwlEastern KingbirdAmerican Tree SparrowHouse SparrowEuropean StarlingSteller's JayWoodhouse's Scrub-JayBlack-billed MagpieCanada JayMountain ChickadeeBushtitJuniper TitmousePygmy NuthatchBlack-chinned HummingbirdBroad-tailed HummingbirdLesser GoldfinchCassin's FinchSpotted TowheeCanyon TowheeGambel's QuailWestern BluebirdMountain BluebirdSay's PhoebeLadder-backed WoodpeckerCurve-billed ThrasherBewick's WrenWhite-crowned SparrowFox SparrowViolet-green SwallowBlack-headed GrosbeakLazuli BuntingBullock's OrioleEurasian Collared-DoveAmerican CrowCommon RavenCooper's HawkSharp-shinned HawkRed-tailed HawkGreat Horned OwlAmerican KestrelWild TurkeyMallardGreat Blue HeronBelted KingfisherBrown-headed CowbirdRuby-crowned KingletGolden-crowned KingletHermit ThrushPine GrosbeakRed CrossbillGray CatbirdWestern TanagerBlack-throated SparrowLark SparrowGreen-tailed TowheePinyon JayClark's NutcrackerWestern Screech-OwlHooded MerganserBand-tailed PigeonYellow WarblerCommon YellowthroatAmerican RedstartYellow-breasted ChatOrange-crowned WarblerRed-eyed VireoWarbling VireoLeast FlycatcherWestern KingbirdScissor-tailed FlycatcherAsh-throated FlycatcherCliff SwallowNorthern Rough-winged SwallowBank SwallowCommon NighthawkCanada GooseAmerican CootKilldeerSpotted SandpiperBlack-crowned Night HeronTurkey VultureOspreyBald EagleMerlinPeregrine FalconNorthern Saw-whet OwlBurrowing OwlLewis's WoodpeckerBlack-backed WoodpeckerAmerican Three-toed WoodpeckerVesper SparrowSnow BuntingLapland LongspurHorned LarkWhite-winged CrossbillGray-crowned Rosy-FinchBohemian WaxwingGreater RoadrunnerBobolinkYellow-headed BlackbirdBrewer's BlackbirdGreat-tailed GrackleRock Pigeon

Sources

  1. Savannah Sparrow — All About Birds, Cornell Lab of Ornithology
  2. Savannah Sparrow life history — Cornell Lab of Ornithology
  3. Savannah Sparrow — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Colorado
  5. USDA Plant Hardiness Zone Map (2023)
  6. 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.