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

Western Screech-Owl In Coastal California

All regionsCoastal CaliforniaGeneralists

Western Screech-Owl in Coastal California has declined: down 26% on the route-weighted index since 1974.

-26%Since 1974
26Routes In Region
36Years

Notable Signals

No notable trend signals for Western Screech-Owl in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Western Screech-Owl in Coastal California is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.06). A 5-year backtest shows a typical error of ±15.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.02Projected 2029 index
0.00–0.0695% range
±15.5%Backtest error
19692029
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
20250.020.000.06
20260.020.000.06
20270.020.000.06
20280.020.000.06
20290.020.000.06

Routes In Coastal California

Routes recording Western Screech-Owl in Coastal California.
Mesa GrandeCALIFORNIA21995
AdelaidaCALIFORNIA21981
Cal Hot SpgsCALIFORNIA22012
Red BluffCALIFORNIA12017
RumseyCALIFORNIA11985
Mt PinosCALIFORNIA11983
Lake SuccessCALIFORNIA11976
Morro BayCALIFORNIA11977
FairfaxCALIFORNIA11988
Sawmill MtnCALIFORNIA11981
TujungaCALIFORNIA11986
El ToroCALIFORNIA11979
Carmel ValCALIFORNIA11978
Lake CachumaCALIFORNIA12013
Gold HillCALIFORNIA12023
ReddingCALIFORNIA11979
MoragaCALIFORNIA12004
Yolla BollyCALIFORNIA12005
Mark WestCALIFORNIA11995
CoyoteCALIFORNIA12017
CopperopolisCALIFORNIA12013
OnealsCALIFORNIA12024
Waterman GapCALIFORNIA12002
GreenfieldCALIFORNIA12021
Glen Ellen 2CALIFORNIA12022

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