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

Nashville Warbler In Northern Pacific Rainforest

All regionsNorthern Pacific RainforestForest birds

Nashville Warbler in Northern Pacific Rainforest has risen sharply: up 65% on the route-weighted index since 1970.

+65%Since 1970
80Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Nashville Warbler has risen sharply in Northern Pacific Rainforest: up 64% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Nashville Warbler in Northern Pacific Rainforest is projected to rise about 97% by 2029 — from 1.6 in 2024 to a central estimate of 3.2 (95% range 0.84–5.5). A 5-year backtest shows a typical error of ±67.4%, with 100% of held-out values landing inside the 95% band.

+97%Change by 2029
3.2Projected 2029 index
0.84–5.595% range
±67.4%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
20253.20.855.5
20263.20.855.5
20273.20.845.5
20283.20.845.5
20293.20.845.5

Routes In Northern Pacific Rainforest

Routes recording Nashville Warbler in Northern Pacific Rainforest.
South Fork MtnCALIFORNIA422022
ClearwaterOREGON392021
CarrvilleCALIFORNIA361970
Horse CreekCALIFORNIA312019
SelmaOREGON312024
RuchOREGON202023
ProspectOREGON192024
CinderellaOREGON172024
Hay ForkCALIFORNIA162017
Pilot CreekCALIFORNIA161996
Secret ValOREGON162022
Days CreekOREGON152024
Lonesome RdgCALIFORNIA142014
Mt. AdamsWASHINGTON122024
OrleansCALIFORNIA112012
Sams ValleyOREGON102024
Whiskey Spg.OREGON102022
MccloudCALIFORNIA92021
WhiskeytownCALIFORNIA92012
DerbyOREGON91993
MolallaOREGON92021
Friday RidgeCALIFORNIA82024
Ship Mtn.CALIFORNIA72017
HullvilleCALIFORNIA62019
Shasta LakeCALIFORNIA62007

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