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

Prairie Falcon In Great Basin

All regionsGreat BasinGeneralists

Prairie Falcon in Great Basin has surged: up 103% on the route-weighted index since 1971.

+103%Since 1971
180Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Prairie Falcon has surged in Great Basin: up 103% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Prairie Falcon in Great Basin is projected to rise about 11% by 2029 — from 0.29 in 2024 to a central estimate of 0.32 (95% range 0.20–0.44). A 5-year backtest shows a typical error of ±27.7%, with 100% of held-out values landing inside the 95% band.

+11%Change by 2029
0.32Projected 2029 index
0.20–0.4495% range
±27.7%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
20250.300.180.42
20260.310.180.43
20270.310.190.43
20280.310.190.43
20290.320.200.44

Routes In Great Basin

Routes recording Prairie Falcon in Great Basin.
Catlow RimOREGON72024
GandyUTAH62015
Dinner StaNEVADA41993
Virgin CreekNEVADA42018
ImnahaOREGON42023
Indian PeakUTAH42016
Tule ValleyUTAH42012
Moses CouleeWASHINGTON42023
PrestonIDAHO32018
Battle MtnOREGON32017
Green Mtn.OREGON32024
Fish SpringsUTAH32017
RavendaleCALIFORNIA22008
DorrisCALIFORNIA22018
MacdoelCALIFORNIA22018
LeadoreIDAHO22024
Pasadena ValIDAHO22004
Blackft ResIDAHO21989
Calico SprNEVADA21974
SutcliffeNEVADA21971
Majors PlaceNEVADA22017
GardnervilleNEVADA21995
Gardnerville 2NEVADA22015
Lone RockOREGON22024
BlitzenOREGON21993

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