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Species · Utah · BBS 2025 Release · 1966–2024

Ruby-crowned Kinglet Population Trend in Utah

All statesForest birds

Ruby-crowned Kinglet in Utah has surged: up 13× on the route-weighted index since 1974.

13×Since 1974
48Routes In State
51Years

Notable Ruby-crowned Kinglet Trends in Utah

long arc increasecomputed index

Ruby-crowned Kinglet has surged in Utah: up 13× on the route-weighted index since 1974.

Ruby-crowned Kinglet Population Forecast in Utah

If the recent trend holds, Ruby-crowned Kinglet in Utah is projected to rise about 70% by 2029 — from 3.2 in 2024 to a central estimate of 5.5 (95% range 3.5–7.5). A 5-year backtest shows a typical error of ±79.7%, with 20% of held-out values landing inside the 95% band.

+70%Change by 2029
5.5Projected 2029 index
3.5–7.595% range
±79.7%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
20255.23.27.2
20265.33.37.3
20275.33.37.4
20285.43.47.4
20295.53.57.5

Ruby-crowned Kinglet Survey Routes in Utah

Routes recording Ruby-crowned Kinglet in Utah.
Grizzly Rdge7520241986
Red Spur Mtn.3520231997
Dixie Nf2720241993
La Sal2120001993
Navajo Lake1720241970
Ferron1620222000
Wasatch Nf1620241988
La Sal 31420242007
Gooseberry1220231994
Uintah Nf1219941988
Woodruff1120242002
Moon Lake 2920232006
La Sal 2920062003
Fish Lake Nf920241992
Logan Canyon820191997
Lost Cr. Res620181995
Soapstone620241992
Beaver520241968
Beck 2520181990
Beck419871977
Heber Mtn.420241996
Bryce Canyon320241990
M Warner Res320181995
Newcastle320212021
Saleratus Cr220042004

Ruby-crowned Kinglet Population Trend in Other States

alaskaarizonacaliforniacoloradoidahomainemichiganminnesotamontananevadanew-hampshirenew-mexiconew-yorkoregonsouth-dakotavermontwashingtonwisconsinwyoming

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