BirdAnalyst
Species · West Virginia · BBS 2026 Release · 1966–2025

Fish Crow Population Trend in West Virginia

All statesGeneralists

Fish Crow in West Virginia has declined: down 32% on the route-weighted index since 1969.

-32%Since 1969TrendPercent 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 →
7Routes 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 →
41YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Fish Crow Trends in West VirginiaNotable 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 Fish Crow in West Virginia. See the full index history below.

Fish Crow Population Forecast in West Virginia

If the recent trend holds, Fish Crow in West Virginia is projected to rise about 28% by 2030 — from 0.16 in 2025 to a central estimate of 0.21 (95% range 0.00–0.63). A 5-year backtest shows a typical error of ±406.9%, with 100% of held-out values landing inside the 95% band.

+28%Change by 2030TrendPercent 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 →
0.21Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.6395% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±406.9%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Fish Crow in West Virginia is projected to rise about 28% by 2030 — from 0.16 in 2025 to a central estimate of 0.21 (95% range 0.00–0.63). A 5-year backtest shows a typical error of ±406.9%, with 100% of held-out values landing inside the 95% band.19672030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20260.210.000.63
20270.210.000.63
20280.210.000.63
20290.210.000.63
20300.210.000.63

Fish Crow Survey Routes in West Virginia

Routes recording Fish Crow in West Virginia.
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 →
Martinsburg620251967
Sugar Grove320232013
Spencer120232023
Yellow Spg120221976
Sleepy Creek119871986
Shanghai120252009
Denmar119971997

Fish Crow Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginia

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.