BirdAnalyst
Species · BCR 5 · BBS 2025 Release · 1966–2024

Hermit Thrush In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Hermit Thrush in Northern Pacific Rainforest has surged: up 192% on the route-weighted index since 1970.

+192%Since 1970
121Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Hermit Thrush has surged in Northern Pacific Rainforest: up 192% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Hermit Thrush in Northern Pacific Rainforest is projected to rise about 16% by 2029 — from 14 in 2024 to a central estimate of 16 (95% range 12–21). A 5-year backtest shows a typical error of ±32%, with 60% of held-out values landing inside the 95% band.

+16%Change by 2029
16Projected 2029 index
12–2195% range
±32%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
2025161121
2026161121
2027161121
2028161121
2029161221

Routes In Northern Pacific Rainforest

Routes recording Hermit Thrush in Northern Pacific Rainforest.
Yakutat (Short)ALASKA1111984
YakutatALASKA812024
Copper RiverALASKA792011
Harlequin L.ALASKA762024
Chichagof IsALASKA742024
Thompson PasALASKA692024
CordovaALASKA632024
HoonahALASKA632024
Thorne BayALASKA602012
HopeALASKA602024
PetersburgALASKA591987
Thorne Bay 2ALASKA582024
SewardALASKA531992
Mitkof IsleALASKA502024
ClearwaterOREGON502021
Whale PassALASKA452024
Mt. AdamsWASHINGTON402024
Sheep MtnALASKA372017
ZaremboALASKA362024
CraigALASKA352024
HainesALASKA332024
Zimovia StrtALASKA332024
Martins FyCALIFORNIA332009
Kuiu IslandALASKA302010
UkiahCALIFORNIA282011

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