BirdAnalyst
Species · BCR 29 · BBS 2025 Release · 1966–2024

Fish Crow In Piedmont

All regionsPiedmontGeneralists

Fish Crow in Piedmont has surged: up 276% on the route-weighted index since 1968.

+276%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 →
152Routes 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 →
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 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 276% 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 23% by 2029 — from 3.4 in 2024 to a central estimate of 2.6 (95% range 1.7–3.5). A 5-year backtest shows a typical error of ±21.1%, with 60% of held-out values landing inside the 95% band.

-23%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 →
2.6Projected 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 →
1.7–3.595% 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 →
±21.1%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 23% by 2029 — from 3.4 in 2024 to a central estimate of 2.6 (95% range 1.7–3.5). A 5-year backtest shows a typical error of ±21.1%, with 60% 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 →
20252.51.63.4
20262.51.63.4
20272.61.73.5
20282.61.73.5
20292.61.73.5

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 →
OlneyMARYLAND252024
JordanNORTH-CAROLINA222024
WheatonMARYLAND192024
WarfieldsbrgMARYLAND182024
NorwoodMARYLAND172012
IjamsvilleMARYLAND152024
FairviewNORTH-CAROLINA142024
HiramGEORGIA112018
EkloMARYLAND112018
RandallstownMARYLAND112013
Plum BranchSOUTH-CAROLINA112024
ArcolaNORTH-CAROLINA102024
Mount JoyPENNSYLVANIA102024
EmmitsburgMARYLAND92024
Taylorstown 2VIRGINIA92024
Curry HillGEORGIA82019
MadonnaMARYLAND82022
Brick TavernPENNSYLVANIA82024
Great FallsVIRGINIA81976
Brandy StationVIRGINIA82023
EdenNORTH-CAROLINA72024
DurhamNORTH-CAROLINA72024
West GrovePENNSYLVANIA71996
SalemSOUTH-CAROLINA72022
WoodstockGEORGIA62021

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