BirdAnalyst
Species · Oregon · BBS 2025 Release · 1966–2024

Ferruginous Hawk Population Trend in Oregon

All statesGeneralists

Ferruginous Hawk in Oregon has risen sharply: up 65% on the route-weighted index since 1973.

+65%Since 1973
33Routes In State
48Years

Notable Ferruginous Hawk Trends in Oregon

long arc increasecomputed index

Ferruginous Hawk has risen sharply in Oregon: up 65% on the route-weighted index since 1973.

Ferruginous Hawk Population Forecast in Oregon

If the recent trend holds, Ferruginous Hawk in Oregon is projected to rise about 16% by 2029 — from 0.13 in 2024 to a central estimate of 0.15 (95% range 0.04–0.26). A 5-year backtest shows a typical error of ±24%, with 80% of held-out values landing inside the 95% band.

+16%Change by 2029
0.15Projected 2029 index
0.04–0.2695% range
±24%Backtest error
19712029
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
20250.140.040.26
20260.150.040.26
20270.150.040.26
20280.150.040.26
20290.150.040.26

Ferruginous Hawk Survey Routes in Oregon

Routes recording Ferruginous Hawk in Oregon.
Fandango Can420241988
Malheur Nwr420221989
Imnaha319821982
Blitzen319931981
Three Forks220212015
Bridgeport220132009
Buchanan220001983
Joseph220241971
Green Mtn.220241994
Crane220241993
Sheaville220122012
Blitzen 2120231997
Zumwalt120041995
Wagontire120241988
Crowley120061984
Montague120231974
Eightmile119991987
Granite119881988
Clover Creek120242018
Princeton119841984
Adrian120082005
Blizzard Gap120211989
Fish Lake119831983
Battle Mtn119901988
Mikkalo120011996

Ferruginous Hawk Population Trend in Other States

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