BirdAnalyst
Species · New York · BBS 2025 Release · 1966–2024

Fish Crow Population Trend in New York

All statesGeneralists

Fish Crow in New York has surged: up 192% on the route-weighted index since 1968.

+192%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 →
22Routes 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 →
49YearsYears 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 New YorkNotable 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 New York: up 192% on the route-weighted index since 1968.

Fish Crow Population Forecast in New York

If the recent trend holds, Fish Crow in New York is projected to fall about 30% by 2029 — from 0.21 in 2024 to a central estimate of 0.15 (95% range 0.00–0.34). A 5-year backtest shows a typical error of ±52.9%, with 80% of held-out values landing inside the 95% band.

-30%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 →
0.15Projected 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 →
0.00–0.3495% 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 →
±52.9%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 New York is projected to fall about 30% by 2029 — from 0.21 in 2024 to a central estimate of 0.15 (95% range 0.00–0.34). A 5-year backtest shows a typical error of ±52.9%, with 80% 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 →
20250.140.000.33
20260.140.000.33
20270.140.000.34
20280.150.000.34
20290.150.000.34

Fish Crow Survey Routes in New York

Routes recording Fish Crow in New York.
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 →
Cicero Ctr420242023
Westhampton320241975
Huntington320231972
Rhinebeck320222006
Jones Beach220121966
Hauppauge220181966
Somers219771973
W Shokan219931993
Austerlitz219871987
Catskills220041987
Ghent220241997
Corbettsvile220191995
Manorville120241978
Highland120212021
Westbrookvle120082008
E Newark120242023
Macdougall120222006
Trumansburg120182018
Branchport120212021
Purdy120212002
Orange Lake119911991
Crescent120231999

Fish Crow Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmississippimissourinew-hampshirenew-jerseynorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvermontvirginiawest-virginia

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