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

Gray Hawk Population Trend in Arizona

All statesGeneralists

Gray Hawk in Arizona has surged: up 653% on the route-weighted index since 1970.

+653%Since 1970
9Routes In State
42Years

Notable Gray Hawk Trends in Arizona

long arc increasecomputed index

Gray Hawk has surged in Arizona: up 653% on the route-weighted index since 1970.

Gray Hawk Population Forecast in Arizona

If the recent trend holds, Gray Hawk in Arizona is projected to fall about 20% by 2029 — from 0.60 in 2024 to a central estimate of 0.48 (95% range 0.22–0.74). A 5-year backtest shows a typical error of ±38.4%, with 60% of held-out values landing inside the 95% band.

-20%Change by 2029
0.48Projected 2029 index
0.22–0.7495% range
±38.4%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
20250.440.180.70
20260.450.190.71
20270.460.200.72
20280.470.210.73
20290.480.220.74

Gray Hawk Survey Routes in Arizona

Routes recording Gray Hawk in Arizona.
Pomerene920241997
Patagonia620241968
Amado620231993
Redington520231993
Peña Blanca520242005
Sunizona 2320232013
Skull Valley120242024
Portal120232023
Sahuarita120232023

Gray Hawk Population Trend in Other States

new-mexicotexas

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