BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Harris's Hawk In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Harris's Hawk in Sonoran and Mojave Deserts has edged up: up 24% on the route-weighted index since 1980.

+24%Since 1980
18Routes In Region
36Years

Notable Signals

No notable trend signals for Harris's Hawk in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Harris's Hawk in Sonoran and Mojave Deserts is projected to rise about 85% by 2029 — from 0.07 in 2024 to a central estimate of 0.12 (95% range 0.00–0.27). A 5-year backtest shows a typical error of ±35.3%, with 100% of held-out values landing inside the 95% band.

+85%Change by 2029
0.12Projected 2029 index
0.00–0.2795% range
±35.3%Backtest error
19742029
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
20250.130.000.27
20260.130.000.27
20270.130.000.27
20280.130.000.27
20290.120.000.27

Routes In Sonoran and Mojave Deserts

Routes recording Harris's Hawk in Sonoran and Mojave Deserts.
Casa GrandeARIZONA52022
WickenburgARIZONA42023
Cibola LakeARIZONA32000
Organ PipeARIZONA32017
Imperial DamCALIFORNIA31988
FlorenceARIZONA21976
Ajo 2ARIZONA22010
Cactus ForestARIZONA22019
WikieupARIZONA12017
New RiverARIZONA12015
CoolidgeARIZONA11980
LukevilleARIZONA11976
Alamo Res.ARIZONA11997
Palo VerdeARIZONA11993
Red RockARIZONA12010
Cabeza PrietARIZONA12024
Bates WellARIZONA12023
Red Rock 2ARIZONA12024

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