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

Fish Crow Population Trend in Virginia

All statesGeneralists

Fish Crow in Virginia has surged: up 154% on the route-weighted index since 1968.

+154%Since 1968TrendPercent 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 →
57Routes 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 →
58YearsYears 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 VirginiaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Fish Crow has surged in Virginia: up 154% on the route-weighted index since 1968.

Fish Crow Population Forecast in Virginia

If the recent trend holds, Fish Crow in Virginia is projected to stay roughly flat through 2029, near 2.0 (95% range 0.72–3.3). A 5-year backtest shows a typical error of ±19.4%, with 100% of held-out values landing inside the 95% band.

+9%Change by 2029TrendPercent 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 →
2.0Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.72–3.395% 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 →
±19.4%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 Virginia is projected to stay roughly flat through 2029, near 2.0 (95% range 0.72–3.3). A 5-year backtest shows a typical error of ±19.4%, with 100% of held-out values landing inside the 95% band.19662029
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 →
20251.90.643.2
20261.90.663.2
20272.00.683.2
20282.00.703.3
20292.00.723.3

Fish Crow Survey Routes in Virginia

Routes recording Fish Crow in 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 →
Stanley2020241977
Waverly1419821979
Colonial Pky1219981992
Edinburg1020241986
Port Royal920191977
Taylorstown 2920242012
Great Falls819761976
White Stone820241972
Quinby820241967
Pungo820241975
Brandy Station820232018
Partlow520002000
Cornland520141978
W Augusta420232023
Gr North Mtn419931993
Amherst420242009
Covesville420231967
Brandon420241992
Star Tannery320231977
Tryme320241975
Jerome320232004
Walkers320221994
Pw Forest Pk320022001
Sharps320211969
Surry320241978

Fish Crow Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontwest-virginia

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