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

Common Raven Population Trend in Montana

All statesGeneralists

Common Raven in Montana has surged: up 374% on the route-weighted index since 1970.

+374%Since 1970
93Routes In State
56Years

Notable Common Raven Trends in Montana

long arc increasecomputed index

Common Raven has surged in Montana: up 374% on the route-weighted index since 1970.

Common Raven Population Forecast in Montana

If the recent trend holds, Common Raven in Montana is projected to fall about 12% by 2029 — from 6.6 in 2024 to a central estimate of 5.8 (95% range 4.3–7.3). A 5-year backtest shows a typical error of ±23.7%, with 80% of held-out values landing inside the 95% band.

-12%Change by 2029
5.8Projected 2029 index
4.3–7.395% range
±23.7%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
20255.54.07.0
20265.64.17.0
20275.74.27.1
20285.74.37.2
20295.84.37.3

Common Raven Survey Routes in Montana

Routes recording Common Raven in Montana.
Boulder11920241975
Wolf Creek4120222015
Philipsburg2420242015
Polson2320241977
Clyde Park2220242018
Church Hill1720242017
Willow Creek 21620241983
Threemile Wa1420241993
Glen1320241978
Wheat Basin1320242017
Two Dot1120241976
Beaverhead1120241975
East Glacier Park1120242015
Heart Butte1120242015
Fort Logan1120242018
Leroy1020242005
Brusett1020242017
Elliston1020241968
Red Rock1020241974
Ninemile1020241993
Noxon1020231995
St. Mary 21020242010
Cleveland920241997
Fish Creek920241995
Freeman Creek920162015

Common Raven Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutgeorgiaidahokentuckymainemarylandmassachusettsmichiganminnesotanebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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