BirdAnalyst
Species · BCR 29 · BBS 2026 Release · 1966–2025

Fish Crow In Piedmont

All regionsPiedmontGeneralists

Fish Crow in Piedmont has surged: up 322% on the route-weighted index since 1968.

+322%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 →
153Routes In RegionSurvey 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 SignalsNotable 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 Piedmont: up 322% on the route-weighted index since 1968.

Fish Crow In Piedmont Population Forecast

If the recent trend holds, Fish Crow in Piedmont is projected to fall about 33% by 2030 — from 4.2 in 2025 to a central estimate of 2.8 (95% range 1.8–3.8). A 5-year backtest shows a typical error of ±30.1%, with 40% of held-out values landing inside the 95% band.

-33%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 →
2.8Projected 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 →
1.8–3.895% 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 →
±30.1%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 Piedmont is projected to fall about 33% by 2030 — from 4.2 in 2025 to a central estimate of 2.8 (95% range 1.8–3.8). A 5-year backtest shows a typical error of ±30.1%, with 40% 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 →
20262.71.73.6
20272.71.73.7
20282.71.73.7
20292.81.83.8
20302.81.83.8

Routes In Piedmont

Routes recording Fish Crow in Piedmont.
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 →
WheatonMARYLAND422025
Taylorstown 2VIRGINIA242025
OlneyMARYLAND172025
NorwoodMARYLAND172012
IjamsvilleMARYLAND152025
FairviewNORTH-CAROLINA142024
JordanNORTH-CAROLINA132025
HiramGEORGIA112018
EkloMARYLAND112018
RandallstownMARYLAND112013
Mount JoyPENNSYLVANIA112025
ArcolaNORTH-CAROLINA102025
Brick TavernPENNSYLVANIA102025
Yates CrossroadsGEORGIA92025
EmmitsburgMARYLAND92025
Curry HillGEORGIA82019
WarfieldsbrgMARYLAND82025
MadonnaMARYLAND82022
GreenwoodSOUTH-CAROLINA82025
Great FallsVIRGINIA81976
West GrovePENNSYLVANIA71996
ChathamPENNSYLVANIA72025
TrymeVIRGINIA72025
BrodnaxVIRGINIA72025
WoodstockGEORGIA62021

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