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Species · Alaska · BBS 2025 Release · 1966–2024

Ruby-crowned Kinglet Population Trend in Alaska

All statesForest birds

Ruby-crowned Kinglet in Alaska has surged: up 128% on the route-weighted index since 1978.

+128%Since 1978
106Routes In State
45Years

Notable Ruby-crowned Kinglet Trends in Alaska

long arc increasecomputed index

Ruby-crowned Kinglet has surged in Alaska: up 128% on the route-weighted index since 1978.

Ruby-crowned Kinglet Population Forecast in Alaska

If the recent trend holds, Ruby-crowned Kinglet in Alaska is projected to rise about 25% by 2029 — from 7.6 in 2024 to a central estimate of 9.6 (95% range 4.2–15). A 5-year backtest shows a typical error of ±24.4%, with 100% of held-out values landing inside the 95% band.

+25%Change by 2029
9.6Projected 2029 index
4.2–1595% range
±24.4%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
20259.54.115
20269.54.115
20279.54.115
20289.64.215
20299.64.215

Ruby-crowned Kinglet Survey Routes in Alaska

Routes recording Ruby-crowned Kinglet in Alaska.
Hope5420241985
Sourdough4420241983
Haines3520241989
Chichagof Is3420241994
Dillingham (Short)3319841984
Seward3119921982
Dillingham2920191995
Homer2819821978
Cordova2620241983
Kalifonsky2520231982
Skilak Lake2319851982
Hoonah2320241993
Moose Pass2119921983
Yakutat2120241993
Kuiu Island2120102004
Ft. Richrdsn2020231994
Kanuti Lake2020242006
Zimovia Strt1920241989
Petersville1920241986
Ruby1920241994
L Salcha1820231994
Kuskulana1820241990
Goose Bay1719821982
Koyukuk Riv.1620011994
Copper River1520111994

Ruby-crowned Kinglet Population Trend in Other States

arizonacaliforniacoloradoidahomainemichiganminnesotamontananevadanew-hampshirenew-mexiconew-yorkoregonsouth-dakotautahvermontwashingtonwisconsinwyoming

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