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

Fish Crow Population Trend in Virginia

All statesGeneralists

Fish Crow in Virginia has surged: up 172% on the route-weighted index since 1968.

+172%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 →
60Routes 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 →
59YearsYears 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 172% 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 fall about 22% by 2030 — from 2.6 in 2025 to a central estimate of 2.1 (95% range 0.79–3.3). A 5-year backtest shows a typical error of ±20.7%, with 100% of held-out values landing inside the 95% band.

-22%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 →
2.1Projected 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 →
0.79–3.395% 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 →
±20.7%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 fall about 22% by 2030 — from 2.6 in 2025 to a central estimate of 2.1 (95% range 0.79–3.3). A 5-year backtest shows a typical error of ±20.7%, with 100% of held-out values landing inside the 95% band.19662030
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 →
20262.00.713.3
20272.00.733.3
20282.00.753.3
20292.00.773.3
20302.10.793.3

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 →
Taylorstown 22420252012
Waverly1419821979
Pungo1220251975
Colonial Pky1219981992
Quinby1120251967
Edinburg820251986
Great Falls819761976
Tryme720251975
Jerome720252004
Brodnax720251973
Stanley620251977
Irisburg620252012
Partlow520002000
Cornland520141978
Carters Brdg 2520252015
W Augusta420232023
Gloucester420251992
Gr North Mtn419931993
Star Tannery320231977
Churchville320251966
Port Royal320251977
Dryden320252025
White Stone320251972
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 2026-08-14.