BirdAnalyst
Species · BCR 31 · BBS 2026 Release · 1966–2025

Fish Crow In Peninsular Florida

All regionsPeninsular FloridaGeneralists

Fish Crow in Peninsular Florida has fallen sharply: down 50% on the route-weighted index since 1968.

-50%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 →
69Routes 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 declinecomputed 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 fallen sharply in Peninsular Florida: down 50% on the route-weighted index since 1968.

Fish Crow In Peninsular Florida Population Forecast

If the recent trend holds, Fish Crow in Peninsular Florida is projected to fall about 21% by 2030 — from 6.2 in 2025 to a central estimate of 4.9 (95% range 0.00–11). A 5-year backtest shows a typical error of ±37.9%, with 100% of held-out values landing inside the 95% band.

-21%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 →
4.9Projected 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 →
0.00–1195% 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 →
±37.9%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 Peninsular Florida is projected to fall about 21% by 2030 — from 6.2 in 2025 to a central estimate of 4.9 (95% range 0.00–11). A 5-year backtest shows a typical error of ±37.9%, 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 →
20265.80.0012
20275.60.0012
20285.40.0012
20295.10.0012
20304.90.0011

Routes In Peninsular Florida

Routes recording Fish Crow in Peninsular Florida.
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 →
AlturasFLORIDA981986
Vero BeachFLORIDA532022
SebastianFLORIDA501992
ScottsmoorFLORIDA442025
Citrus ParkFLORIDA442025
Winter GardnFLORIDA302019
Dale MabryFLORIDA271988
Boca RatonFLORIDA261994
AripekaFLORIDA252025
DavieFLORIDA152017
Ridge HarborFLORIDA142025
IndiantownFLORIDA132017
SalvistaFLORIDA121979
Island GroveFLORIDA112025
Punta GordaFLORIDA112015
MicanopyFLORIDA101991
FlemingtonFLORIDA101999
Indiantown 2FLORIDA102025
CorbettFLORIDA102025
Mt. OliveFLORIDA92025
San AntonioFLORIDA82025
Polk CityFLORIDA82025
KissimmeeFLORIDA72025
Wildernes PkFLORIDA72014
BelmoreFLORIDA62024

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