BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Wilson's Warbler In Northern Rockies

All regionsNorthern RockiesForest birds

Wilson's Warbler in Northern Rockies has held roughly steady: down 2% on the route-weighted index since 1970.

-2%Since 1970
123Routes In Region
56Years

Notable Signals

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

Forecast

If the recent trend holds, Wilson's Warbler in Northern Rockies is projected to rise about 19% by 2029 — from 0.48 in 2024 to a central estimate of 0.57 (95% range 0.06–1.1). A 5-year backtest shows a typical error of ±22.8%, with 100% of held-out values landing inside the 95% band.

+19%Change by 2029
0.57Projected 2029 index
0.06–1.195% range
±22.8%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
20250.570.061.1
20260.570.061.1
20270.570.061.1
20280.570.061.1
20290.570.061.1

Routes In Northern Rockies

Routes recording Wilson's Warbler in Northern Rockies.
AveryIDAHO152023
Lolo PassIDAHO122019
Crazy WomanWYOMING102024
Green RiverWYOMING101982
Soda LakeWYOMING92024
Marble CreekIDAHO82023
CusickWASHINGTON82024
Logan PassMONTANA62024
WalcottWYOMING61982
Libby DamMONTANA52013
ArleeMONTANA52023
SulaMONTANA52024
SkalkahoMONTANA51992
Swan LakeMONTANA52021
Colter Bay 2WYOMING52022
LogdellOREGON42024
Hells CanyonOREGON42022
Colter BayWYOMING41997
CrowheartWYOMING42005
Fiddler LkWYOMING42024
BeaverheadMONTANA31997
ClancyMONTANA32023
Summit PrOREGON31982
UnityOREGON32000
Eagle CreekOREGON32022

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