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

Bewick's Wren In Great Basin

All regionsGreat BasinForest birds

Bewick's Wren in Great Basin has surged: up 340% on the route-weighted index since 1970.

+340%Since 1970
96Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Bewick's Wren has surged in Great Basin: up 340% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Bewick's Wren in Great Basin is projected to rise about 41% by 2029 — from 0.46 in 2024 to a central estimate of 0.65 (95% range 0.34–0.95). A 5-year backtest shows a typical error of ±102%, with 40% of held-out values landing inside the 95% band.

+41%Change by 2029
0.65Projected 2029 index
0.34–0.9595% range
±102%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
20250.610.310.92
20260.620.320.92
20270.630.330.93
20280.640.340.94
20290.650.340.95

Routes In Great Basin

Routes recording Bewick's Wren in Great Basin.
Iron GateCALIFORNIA442019
Sand PassNEVADA102024
GardnervilleNEVADA102012
Modoc PointOREGON102014
Honey LakeCALIFORNIA92024
Meadow VallyNEVADA92024
Modoc Point 2OREGON62024
GiffordIDAHO52017
Rye PatchNEVADA51987
CalienteNEVADA52019
VernonUTAH52024
YakimaWASHINGTON52024
DorrisCALIFORNIA42019
MacdoelCALIFORNIA42019
BartleCALIFORNIA42019
Toiyabe NfNEVADA42003
WapatoWASHINGTON42022
NubieberCALIFORNIA32018
Big PineCALIFORNIA32023
BodieCALIFORNIA32024
Crowley LakeCALIFORNIA32015
Fall River MillsCALIFORNIA32011
Calico SprNEVADA31969
HawthorneNEVADA32001
Wah WahUTAH32003

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