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

American Dipper In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestGeneralists

American Dipper in Northern Pacific Rainforest has held roughly steady: down 9% on the route-weighted index since 1972.

-9%Since 1972
63Routes In Region
53Years

Notable Signals

No notable trend signals for American Dipper in Northern Pacific Rainforest. See the full index history below.

Forecast

If the recent trend holds, American Dipper in Northern Pacific Rainforest is projected to fall about 39% by 2029 — from 0.15 in 2024 to a central estimate of 0.09 (95% range 0.01–0.17). A 5-year backtest shows a typical error of ±41%, with 100% of held-out values landing inside the 95% band.

-39%Change by 2029
0.09Projected 2029 index
0.01–0.1795% range
±41%Backtest error
19692029
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
20250.090.010.17
20260.090.010.17
20270.090.010.17
20280.090.010.17
20290.090.010.17

Routes In Northern Pacific Rainforest

Routes recording American Dipper in Northern Pacific Rainforest.
MolallaOREGON92024
WhiskeytownCALIFORNIA52007
SvensenOREGON31992
Thorne Bay 2ALASKA22018
HyderALASKA22001
OrleansCALIFORNIA22012
KorbelCALIFORNIA22021
HiouchiCALIFORNIA22012
Big FlatCALIFORNIA22002
Hay ForkCALIFORNIA22005
TimberOREGON22017
ScioOREGON22002
Blue RiverOREGON22022
Riley PeakOREGON22016
IssaquahWASHINGTON21979
GreenwaterWASHINGTON22019
Juneau AltALASKA11984
JuneauALASKA12021
HainesALASKA12022
CordovaALASKA12017
Harlequin L.ALASKA12004
Chichagof IsALASKA12024
Sitka (Short)ALASKA11986
Horse CreekCALIFORNIA12018
CarrvilleCALIFORNIA11970

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