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

Red-tailed Hawk In Coastal California

All regionsCoastal CaliforniaGeneralists

Red-tailed Hawk in Coastal California has risen sharply: up 69% on the route-weighted index since 1970.

+69%Since 1970
120Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Red-tailed Hawk has risen sharply in Coastal California: up 69% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Red-tailed Hawk in Coastal California is projected to stay roughly flat through 2029, near 6.1 (95% range 5.0–7.2). A 5-year backtest shows a typical error of ±9.1%, with 100% of held-out values landing inside the 95% band.

+1%Change by 2029
6.1Projected 2029 index
5.0–7.295% range
±9.1%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
20255.94.87.0
20265.94.87.0
20276.04.97.1
20286.04.97.1
20296.15.07.2

Routes In Coastal California

Routes recording Red-tailed Hawk in Coastal California.
AthloneCALIFORNIA332007
ParkfieldCALIFORNIA242024
Tres Pinos 2CALIFORNIA202011
OnealsCALIFORNIA182024
HughsonCALIFORNIA172024
HollisterCALIFORNIA142011
SangerCALIFORNIA142024
Lake BerryessaCALIFORNIA132024
MoragaCALIFORNIA132024
VentucopaCALIFORNIA122002
CopperopolisCALIFORNIA122024
MorenoCALIFORNIA112024
SisquocCALIFORNIA112014
Ora LomaCALIFORNIA112024
Collegeville 2CALIFORNIA112023
Mesa GrandeCALIFORNIA92024
AtwaterCALIFORNIA92012
CoyoteCALIFORNIA92024
LivermoreCALIFORNIA91991
Oak GroveCALIFORNIA82024
Cuyamaca PkCALIFORNIA82024
Carrizo PlnCALIFORNIA82023
WestleyCALIFORNIA82024
GreenfieldCALIFORNIA82024
Cal Hot SpgsCALIFORNIA82019

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