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

Peregrine Falcon In Coastal California

All regionsCoastal CaliforniaGeneralists

Peregrine Falcon in Coastal California has surged: up 136% on the route-weighted index since 1979.

+136%Since 1979
18Routes In Region
21Years

Notable Signals

No notable trend signals for Peregrine Falcon in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Peregrine Falcon in Coastal California is projected to stay roughly flat through 2029, near 0.05 (95% range 0.02–0.09). A 5-year backtest shows a typical error of ±42.9%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2029
0.05Projected 2029 index
0.02–0.0995% range
±42.9%Backtest error
19702029
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
20250.050.010.08
20260.050.010.09
20270.050.010.09
20280.050.010.09
20290.050.020.09

Routes In Coastal California

Routes recording Peregrine Falcon in Coastal California.
HughsonCALIFORNIA12024
Morro BayCALIFORNIA12012
Point ReyesCALIFORNIA12021
OrlandCALIFORNIA11993
FolsomCALIFORNIA12008
S CatalinaCALIFORNIA12019
ValyermoCALIFORNIA12012
Cuyamaca PkCALIFORNIA11980
AdelaidaCALIFORNIA11978
GlennCALIFORNIA12015
AtwaterCALIFORNIA12012
Gold HillCALIFORNIA12011
Yolla BollyCALIFORNIA12018
Mark WestCALIFORNIA12021
OnealsCALIFORNIA12017
Buena VistaCALIFORNIA12017
PescaderoCALIFORNIA12012
Harbor Lake 2CALIFORNIA12024

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