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

Common Raven Population Trend in Massachusetts

All statesGeneralists

Common Raven in Massachusetts has surged: up 678% on the route-weighted index since 1985.

+678%Since 1985
20Routes In State
38Years

Notable Common Raven Trends in Massachusetts

long arc increasecomputed index

Common Raven has surged in Massachusetts: up 678% on the route-weighted index since 1985.

Common Raven Population Forecast in Massachusetts

If the recent trend holds, Common Raven in Massachusetts is projected to fall about 26% by 2029 — from 1.9 in 2024 to a central estimate of 1.4 (95% range 0.41–2.4). A 5-year backtest shows a typical error of ±59.3%, with 100% of held-out values landing inside the 95% band.

-26%Change by 2029
1.4Projected 2029 index
0.41–2.495% range
±59.3%Backtest error
19822029
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
20251.30.292.2
20261.30.332.3
20271.30.352.3
20281.40.392.3
20291.40.412.4

Common Raven Survey Routes in Massachusetts

Routes recording Common Raven in Massachusetts.
Chesterfield1220241991
Cummington 2620242015
Cummington420131984
Mansfield320182011
Cheshire319941989
Prattville220152015
Littleton220242005
Belchertown220242000
S Barre220212021
N Orange220241982
Pittsfield220161985
Sheffield220221991
Monterey220242019
N. Andover220182018
Ware River120221994
Maynard120182018
N Oxford120222022
Holden120242003
Warren 2120242022
Hancock120151997

Common Raven Population Trend in Other States

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

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