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Species · Alaska · BBS 2025 Release · 1966–2024

Hermit Thrush Population Trend in Alaska

All statesForest birds

Hermit Thrush in Alaska has surged: up 155% on the route-weighted index since 1972.

+155%Since 1972
107Routes In State
51Years

Notable Hermit Thrush Trends in Alaska

long arc increasecomputed index

Hermit Thrush has surged in Alaska: up 155% on the route-weighted index since 1972.

Hermit Thrush Population Forecast in Alaska

If the recent trend holds, Hermit Thrush in Alaska is projected to rise about 23% by 2029 — from 16 in 2024 to a central estimate of 20 (95% range 11–29). A 5-year backtest shows a typical error of ±39.8%, with 100% of held-out values landing inside the 95% band.

+23%Change by 2029
20Projected 2029 index
11–2995% range
±39.8%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
2025191028
2026191128
2027201128
2028201129
2029201129

Hermit Thrush Survey Routes in Alaska

Routes recording Hermit Thrush in Alaska.
Yakutat (Short)11119841984
Yakutat8120241993
Kodiak 28120241985
Copper River7920111993
Harlequin L.7620241993
Chichagof Is7420241994
Chiniak7220241985
Thompson Pas6920241983
Cordova6320241983
Hoonah6320241993
Thorne Bay6020121989
Hope6020241985
Petersburg5919871987
Thorne Bay 25820242013
Seward5319921982
Mitkof Isle5020241988
Kodiak4819841983
Whale Pass4520241997
Sheep Mtn3720171983
Zarembo3620241993
Craig3520241983
Homer3319821977
Haines3320241972
Matanuska3319831982
Zimovia Strt3320241988

Hermit Thrush Population Trend in Other States

arizonacaliforniacoloradoconnecticutidahomainemarylandmassachusettsmichiganminnesotamontananevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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