BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Red-tailed Hawk In Sierra Nevada

All regionsSierra NevadaGeneralists

Red-tailed Hawk in Sierra Nevada has declined: down 34% on the route-weighted index since 1971.

-34%Since 1971
38Routes In Region
55Years

Notable Signals

No notable trend signals for Red-tailed Hawk in Sierra Nevada. See the full index history below.

Forecast

If the recent trend holds, Red-tailed Hawk in Sierra Nevada is projected to fall about 19% by 2029 — from 1.1 in 2024 to a central estimate of 0.86 (95% range 0.28–1.4). A 5-year backtest shows a typical error of ±25.7%, with 100% of held-out values landing inside the 95% band.

-19%Change by 2029
0.86Projected 2029 index
0.28–1.495% range
±25.7%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
20250.860.291.4
20260.860.291.4
20270.860.291.4
20280.860.291.4
20290.860.281.4

Routes In Sierra Nevada

Routes recording Red-tailed Hawk in Sierra Nevada.
SattleyCALIFORNIA92024
GoumazCALIFORNIA92011
Greenhorn MtCALIFORNIA52008
WestvilleCALIFORNIA32021
PaxtonCALIFORNIA32024
ChilcootCALIFORNIA32024
WoodfordsCALIFORNIA22024
Silver CityCALIFORNIA22013
GeneseeCALIFORNIA22019
Tahoe NfCALIFORNIA21993
Forest HillCALIFORNIA22014
Pollock PinesCALIFORNIA22019
CoultervilleCALIFORNIA22019
WawonaCALIFORNIA22023
Forest Hill 2CALIFORNIA22005
Lassen ParkCALIFORNIA11986
Eagle LakeCALIFORNIA12024
Cottage SpgsCALIFORNIA11975
DardanelleCALIFORNIA12018
Bass LakeCALIFORNIA12019
JohnsvilleCALIFORNIA12021
LumberyardCALIFORNIA12023
Kings CanyonCALIFORNIA12013
Tuolumne GroveCALIFORNIA12023
Butte MeadowCALIFORNIA12000

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