BirdAnalyst
Species · New Mexico · BBS 2025 Release · 1966–2024

Ferruginous Hawk Population Trend in New Mexico

All statesGeneralists

Ferruginous Hawk in New Mexico has fallen sharply: down 64% on the route-weighted index since 1979.

-64%Since 1979
31Routes In State
41Years

Notable Ferruginous Hawk Trends in New Mexico

long arc declinecomputed index

Ferruginous Hawk has fallen sharply in New Mexico: down 64% on the route-weighted index since 1979.

Ferruginous Hawk Population Forecast in New Mexico

If the recent trend holds, Ferruginous Hawk in New Mexico is projected to stay roughly flat through 2029, near 0.07 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±44.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.07Projected 2029 index
0.00–0.2395% range
±44.6%Backtest error
19752029
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
20250.080.000.23
20260.070.000.23
20270.070.000.23
20280.070.000.23
20290.070.000.23

Ferruginous Hawk Survey Routes in New Mexico

Routes recording Ferruginous Hawk in New Mexico.
Correo319761975
Clovis320062001
Farley220171990
Grenville220171983
Horse Spgs220231998
Rosebud220211994
San Simon119801980
Crownpoint119791976
Torreon120081991
Salt Lake 2120232019
Pecos120061999
Fence Lake120122012
Valencia119891976
Floyd120211980
Horse Mtn120102004
Caprock119881988
Maxwell120232003
Gallo Arroyo120141997
Shiprock120242009
Sedan120241995
Variadero120102010
Quemado119971997
Mountainair120141998
Corona East119951995
Pastura120142005

Ferruginous Hawk Population Trend in Other States

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