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

Bewick's Wren In Northern Rockies

All regionsNorthern RockiesForest birds

Bewick's Wren in Northern Rockies has declined: down 39% on the route-weighted index since 1976.

-39%Since 1976
19Routes In Region
39Years

Notable Signals

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

Forecast

If the recent trend holds, Bewick's Wren in Northern Rockies is projected to fall about 52% by 2029 — from 0.15 in 2024 to a central estimate of 0.07 (95% range 0.00–0.20). A 5-year backtest shows a typical error of ±23.8%, with 100% of held-out values landing inside the 95% band.

-52%Change by 2029
0.07Projected 2029 index
0.00–0.2095% range
±23.8%Backtest error
19732029
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
20250.080.000.20
20260.070.000.20
20270.070.000.20
20280.070.000.20
20290.070.000.20

Routes In Northern Rockies

Routes recording Bewick's Wren in Northern Rockies.
MaybellCOLORADO62024
Browns ParkCOLORADO42024
LayCOLORADO42024
NewbridgeOREGON32024
Deer ParkWASHINGTON22008
Mtn ViewWYOMING21999
Great DivideCOLORADO12024
Mount VernonOREGON12024
TroyOREGON12019
Black Mtn.OREGON12000
TwickenhamOREGON12024
Saleratus CrUTAH11997
Crawford MtsUTAH12015
KellerWASHINGTON12006
Spring LakeWASHINGTON12024
BairoilWYOMING11990
Rock SpringsWYOMING12017
BaggsWYOMING12022
SeedskadeeWYOMING12014

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