BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Wilson's Warbler In Great Basin

All regionsGreat BasinForest birds

Wilson's Warbler in Great Basin has held roughly steady: up 9% on the route-weighted index since 1970.

+9%Since 1970
110Routes In Region
56Years

Notable Signals

No notable trend signals for Wilson's Warbler in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Wilson's Warbler in Great Basin is projected to stay roughly flat through 2029, near 0.40 (95% range 0.11–0.68). A 5-year backtest shows a typical error of ±10.6%, with 100% of held-out values landing inside the 95% band.

+5%Change by 2029
0.40Projected 2029 index
0.11–0.6895% range
±10.6%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
20250.400.110.68
20260.400.110.68
20270.400.110.68
20280.400.110.68
20290.400.110.68

Routes In Great Basin

Routes recording Wilson's Warbler in Great Basin.
KendallWASHINGTON252024
Ruby ValleyNEVADA142000
SnowdenWASHINGTON102024
LeavenworthWASHINGTON82015
E. Mt. AdamsWASHINGTON72024
ConcreteWASHINGTON52019
Iron GateCALIFORNIA42011
BodieCALIFORNIA32011
DorrisCALIFORNIA32011
TionestaCALIFORNIA32004
JosephOREGON32014
PendletonOREGON32011
Badger CreekOREGON32006
Goose Creek Mtn.UTAH32007
NewcastleUTAH32022
GlacierWASHINGTON32024
Crowley LakeCALIFORNIA22004
Deep SpringsCALIFORNIA22011
SquirrelIDAHO21977
PicaboIDAHO22013
AustinNEVADA22016
Mt HoodOREGON22023
AdrianOREGON22021
MerrillOREGON22006
LynnUTAH22011

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