BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Bewick's Wren In Coastal California

All regionsCoastal CaliforniaForest birds

Bewick's Wren in Coastal California has increased: up 25% on the route-weighted index since 1970.

+25%Since 1970
114Routes In Region
56Years

Notable Signals

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

Forecast

If the recent trend holds, Bewick's Wren in Coastal California is projected to stay roughly flat through 2029, near 9.2 (95% range 5.9–13). A 5-year backtest shows a typical error of ±29.3%, with 80% of held-out values landing inside the 95% band.

-8%Change by 2029
9.2Projected 2029 index
5.9–1395% range
±29.3%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
20259.15.712
20269.15.813
20279.25.813
20289.25.813
20299.25.913

Routes In Coastal California

Routes recording Bewick's Wren in Coastal California.
Santa Cruz ICALIFORNIA771988
Elsinore MtnCALIFORNIA662024
PowayCALIFORNIA591980
Cuyamaca PkCALIFORNIA572024
Oak GroveCALIFORNIA452024
S CatalinaCALIFORNIA432022
JacumbaCALIFORNIA362024
South LakeCALIFORNIA352006
AuburnCALIFORNIA331980
StonyfordCALIFORNIA282018
Tres Pinos 2CALIFORNIA272011
Anza 2CALIFORNIA242024
Mt BaldyCALIFORNIA212024
Hough SpringsCALIFORNIA212007
Tres PinosCALIFORNIA192003
Lake BerryessaCALIFORNIA192024
ColmaCALIFORNIA181972
CoyoteCALIFORNIA182024
Waterman GapCALIFORNIA182024
RumseyCALIFORNIA162008
Lake CachumaCALIFORNIA152016
TomheadCALIFORNIA152011
Lockwood ValCALIFORNIA142019
Elizabeth LkCALIFORNIA132016
Yolla BollyCALIFORNIA132024

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