Idaho · Summer breeder

Ruby-crowned Kinglets in Idaho

When ruby-crowned kinglets are present in Idaho, when they nest, which native Idaho plants feed them, and how to host them in a USDA 3b–7b yard.

Kinglets (Regulidae)Ruby-crowned KingletCorthylio calendula
Status in Idaho
Summer breeder
Nesting window
May–July
Broods
1 per season
Hardiness zones
USDA 3b–7b

When to expect ruby-crowned kinglets in Idaho

Ruby-crowned Kinglets are summer residents in Idaho, arriving shortly before nesting begins in May and leaving after the young are independent.

Semi-arid sagebrush plains along the Snake River and forested mountains to the north and center.

Nesting in Idaho

Across Idaho, ruby-crowned kinglets typically nest from May–July. Plan around that window: April for setup, July for clean-out.

Hot, dry summers in the Snake River Plain and cool mountain summers.

  • Ruby-crowned Kinglets don't use nest boxes. Keep dense native shrubs and trees such as paper birch, chokecherry, common hackberry for nest sites.
  • Delay heavy pruning of shrubs until after July.

Native Idaho plants that attract ruby-crowned kinglets

Of the regional native plants we track for Idaho, these 8 provide food or cover ruby-crowned kinglets use:

Tall goldenrod
Solidago altissima · Perennial

Insect-rich in fall and seed in winter.

Paper birch
Betula papyrifera · Tree

Catkin seed feeds redpolls and siskins all winter.

Chokecherry
Prunus virginiana · Shrub

Dark summer fruit and heavy caterpillar load.

Common hackberry
Celtis occidentalis · Tree

Sweet dry fruit on the branch all winter.

Rocky Mountain juniper
Juniperus scopulorum · Tree

Berry-like cones feed bluebirds, solitaires and waxwings in winter.

Ponderosa pine
Pinus ponderosa · Tree

Seeds and bark insects; pygmy nuthatch and woodpecker habitat.

Rabbitbrush
Ericameria nauseosa · Shrub

Late-season bloom supports insects; seed for sparrows.

Douglas fir
Pseudotsuga menziesii · Tree

Seed for crossbills, siskins and chickadees.

Feeding ruby-crowned kinglets through the Idaho year

  • Top foods: Suet, Suet nuggets.
  • In Idaho's summer: offer water and insect foods; natural food is abundant.

Full diet breakdown for ruby-crowned kinglets · Best feeder for ruby-crowned kinglets

Frequently asked

Are ruby-crowned kinglets in Idaho year-round?

No. Ruby-crowned Kinglets are summer breeders in Idaho and leave for the winter.

When do ruby-crowned kinglets nest in Idaho?

Nesting in Idaho typically runs May–July, with 1 per season. Clutches are 4–14 eggs, incubated for 12–14 days.

What native plants attract ruby-crowned kinglets in Idaho?

Tall goldenrod, Paper birch, Chokecherry, Common hackberry, Rocky Mountain juniper, Ponderosa pine, Rabbitbrush, Douglas fir are native plants in Idaho that provide food or cover for ruby-crowned kinglets.

Ruby-crowned Kinglets in other regions

Other backyard birds in Idaho

Black-capped ChickadeeDowny WoodpeckerHairy WoodpeckerAmerican GoldfinchWhite-breasted NuthatchHouse WrenHouse FinchMourning DoveAmerican RobinDark-eyed JuncoSong SparrowChipping SparrowNorthern FlickerPileated WoodpeckerRed-breasted NuthatchBrown CreeperRed-winged BlackbirdEvening GrosbeakPine SiskinCommon RedpollGray CatbirdCedar WaxwingTree SwallowBarn SwallowYellow-rumped WarblerEastern KingbirdAmerican Tree SparrowHouse SparrowEuropean StarlingSteller's JayWoodhouse's Scrub-JayBlack-billed MagpieCanada JayMountain ChickadeeChestnut-backed ChickadeeBushtitJuniper TitmousePygmy NuthatchBlack-chinned HummingbirdRufous HummingbirdBroad-tailed HummingbirdLesser GoldfinchCassin's FinchSpotted TowheeCalifornia QuailWestern BluebirdMountain BluebirdSay's PhoebeWhite-crowned SparrowFox SparrowVaried ThrushViolet-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 CowbirdGolden-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 KingbirdAsh-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 WoodpeckerWhite-headed WoodpeckerSavannah SparrowVesper SparrowSnow BuntingLapland LongspurHorned LarkCommon RedpollWhite-winged CrossbillGray-crowned Rosy-FinchBohemian WaxwingBobolinkYellow-headed BlackbirdBrewer's BlackbirdRock Pigeon

Sources

  1. Ruby-crowned Kinglet — All About Birds, Cornell Lab of Ornithology
  2. Ruby-crowned Kinglet life history — Cornell Lab of Ornithology
  3. Ruby-crowned Kinglet — Audubon Guide to North American Birds
  4. eBird region overview and bar charts — Idaho
  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.