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

Peregrine Falcon Population Trend in Montana

All statesGeneralists

Peregrine Falcon in Montana has held roughly steady: up 7% on the route-weighted index since 1993.

+7%Since 1993TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
11Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
15YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Peregrine Falcon Trends in MontanaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Peregrine Falcon in Montana. See the full index history below.

Peregrine Falcon Survey Routes in Montana

Routes recording Peregrine Falcon in Montana.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Maynard Coulee220182018
Pablo Res.220231996
Hay Lake120162016
Chestnut120242024
Pryor Mtn.120182017
Beaverhead119961991
Red Rock119941989
Wheat Basin120182018
Great Falls119961996
Painted Rock120041993
Two Dot120232023

Peregrine Falcon Population Trend in Other States

alabamaalaskaarizonacaliforniacoloradoconnecticutdelawareidahoindianamainemarylandmichiganminnesotanebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorkoklahomaoregonpennsylvaniatennesseetexasutahvermontvirginiawashingtonwisconsinwyoming

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