BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Red-tailed Hawk In Great Basin

All regionsGreat BasinGeneralists

Red-tailed Hawk in Great Basin has surged: up 204% on the route-weighted index since 1970.

+204%Since 1970
262Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Red-tailed Hawk has surged in Great Basin: up 204% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Red-tailed Hawk in Great Basin is projected to rise about 36% by 2029 — from 2.9 in 2024 to a central estimate of 3.9 (95% range 3.1–4.8). A 5-year backtest shows a typical error of ±24.3%, with 60% of held-out values landing inside the 95% band.

+36%Change by 2029
3.9Projected 2029 index
3.1–4.895% range
±24.3%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
20253.82.94.6
20263.83.04.7
20273.93.04.7
20283.93.04.7
20293.93.14.8

Routes In Great Basin

Routes recording Red-tailed Hawk in Great Basin.
Malheur NwrOREGON512022
PicaboIDAHO322021
DorrisCALIFORNIA292019
MacdoelCALIFORNIA252019
MerrillOREGON242022
Mud LakeIDAHO222022
DeschutesOREGON202024
LikelyCALIFORNIA192024
Cedar HillIDAHO122024
UmatillaOREGON122023
Trout CreekOREGON122021
DuboisIDAHO112024
Modoc PointOREGON112018
KeystoneWASHINGTON112024
NixonNEVADA102024
Lone RockOREGON102024
JosephOREGON102024
Scootney ReservoirWASHINGTON102024
CedarvilleCALIFORNIA92024
LeadoreIDAHO92024
Modoc Point 2OREGON92024
CraneOREGON92024
AsotinWASHINGTON92024
ZumwaltOREGON82005
MaldenWASHINGTON82024

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