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

Fish Crow Population Trend in Massachusetts

All statesGeneralists

Fish Crow in Massachusetts has surged: up 764% on the route-weighted index since 1992.

+764%Since 1992
15Routes In State
33Years

Notable Fish Crow Trends in Massachusetts

long arc increasecomputed index

Fish Crow has surged in Massachusetts: up 764% on the route-weighted index since 1992.

Fish Crow Population Forecast in Massachusetts

If the recent trend holds, Fish Crow in Massachusetts is projected to rise about 143% by 2029 — from 0.60 in 2024 to a central estimate of 1.5 (95% range 0.73–2.2). A 5-year backtest shows a typical error of ±65%, with 60% of held-out values landing inside the 95% band.

+143%Change by 2029
1.5Projected 2029 index
0.73–2.295% range
±65%Backtest error
19852029
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
20251.30.582.0
20261.30.622.1
20271.40.652.1
20281.40.692.2
20291.50.732.2

Fish Crow Survey Routes in Massachusetts

Routes recording Fish Crow in Massachusetts.
Marion620241993
Mansfield220241991
Belchertown220192019
S Barre220192019
E Dennis120212008
Wellfleet120051991
Prattville120192002
Brockton120191985
Newburyport119971994
Maynard119951995
Wellfleet 2120242016
Cape Cod Ns119981992
Holden120232022
N. Andover120232018
Warren 2120232023

Fish Crow Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginia

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