BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

Red-tailed Hawk In Northern Rockies

All regionsNorthern RockiesGeneralists

Red-tailed Hawk in Northern Rockies has surged: up 212% on the route-weighted index since 1970.

+212%Since 1970
218Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Red-tailed Hawk has surged in Northern Rockies: up 212% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Red-tailed Hawk in Northern Rockies is projected to rise about 26% by 2029 — from 1.7 in 2024 to a central estimate of 2.1 (95% range 1.6–2.6). A 5-year backtest shows a typical error of ±12.2%, with 100% of held-out values landing inside the 95% band.

+26%Change by 2029
2.1Projected 2029 index
1.6–2.695% range
±12.2%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
20252.01.52.5
20262.11.62.6
20272.11.62.6
20282.11.62.6
20292.11.62.6

Routes In Northern Rockies

Routes recording Red-tailed Hawk in Northern Rockies.
Red RockMONTANA112024
PolsonMONTANA102024
Pablo Res.MONTANA102024
ChewelahWASHINGTON92021
East Glacier ParkMONTANA72024
Church HillMONTANA72024
Clyde ParkMONTANA72024
Malheur Res.OREGON72023
TwickenhamOREGON72024
CrowheartWYOMING72016
Green RiverWYOMING71984
NaplesIDAHO62024
EllistonMONTANA62024
Mount VernonOREGON62024
MadrasOREGON62024
SilviesOREGON62024
CarterWYOMING62016
St MaryMONTANA52008
Wise RiverMONTANA52022
St. Mary 2MONTANA52024
Willow Creek 2MONTANA52024
BridgeportOREGON52022
Clover CreekOREGON52024
UnityOREGON52024
CodyWYOMING52024

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