BirdAnalyst
Species · Idaho · BBS 2025 Release · 1966–2024

Ruby-crowned Kinglet Population Trend in Idaho

All statesForest birds

Ruby-crowned Kinglet in Idaho has surged: up 249% on the route-weighted index since 1970.

+249%Since 1970
43Routes In State
56Years

Notable Ruby-crowned Kinglet Trends in Idaho

long arc increasecomputed index

Ruby-crowned Kinglet has surged in Idaho: up 249% on the route-weighted index since 1970.

Ruby-crowned Kinglet Population Forecast in Idaho

If the recent trend holds, Ruby-crowned Kinglet in Idaho is projected to stay roughly flat through 2029, near 5.2 (95% range 3.0–7.3). A 5-year backtest shows a typical error of ±17.8%, with 100% of held-out values landing inside the 95% band.

+2%Change by 2029
5.2Projected 2029 index
3.0–7.395% range
±17.8%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20254.92.87.0
20265.02.87.1
20275.02.97.2
20285.13.07.2
20295.23.07.3

Ruby-crowned Kinglet Survey Routes in Idaho

Routes recording Ruby-crowned Kinglet in Idaho.
Lolo Pass2820191992
Squirrel2820241971
Cobalt2820241989
Burgdorf2620161988
Cape Horn1820241972
Grangeville1720241986
Nezperce Nf1619991992
Cascade1519841970
Baldy Mountain1420162013
Yellow Pine1320161989
Golden1020161987
Challis920241976
Magic Mtn920241987
Rochat Divde820231993
Cabarton820231985
Avery620231979
Sawtooth City 2620242015
Pierce620051990
Sawtooth Cty620141988
Alturas519871968
Sunbeam420191994
Silver City420241989
Featherville420241989
Centerville220131983
Coolin220242002

Ruby-crowned Kinglet Population Trend in Other States

alaskaarizonacaliforniacoloradomainemichiganminnesotamontananevadanew-hampshirenew-mexiconew-yorkoregonsouth-dakotautahvermontwashingtonwisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.