BirdAnalyst
Species · Texas · BBS 2025 Release · 1966–2024

Fish Crow Population Trend in Texas

All statesGeneralists

Fish Crow in Texas has surged: up 412% on the route-weighted index since 1977.

+412%Since 1977TrendPercent 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 →
26Routes 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 →
37YearsYears 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 TexasNotable 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 Texas: up 412% on the route-weighted index since 1977.

Fish Crow Population Forecast in Texas

If the recent trend holds, Fish Crow in Texas is projected to rise about 48% by 2029 — from 0.11 in 2024 to a central estimate of 0.16 (95% range 0.07–0.26). A 5-year backtest shows a typical error of ±66.1%, with 80% of held-out values landing inside the 95% band.

+48%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 →
0.16Projected 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 →
0.07–0.2695% 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 →
±66.1%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 Texas is projected to rise about 48% by 2029 — from 0.11 in 2024 to a central estimate of 0.16 (95% range 0.07–0.26). A 5-year backtest shows a typical error of ±66.1%, with 80% of held-out values landing inside the 95% band.19682029
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 →
20250.150.060.24
20260.150.060.25
20270.160.070.25
20280.160.070.25
20290.160.070.26

Fish Crow Survey Routes in Texas

Routes recording Fish Crow in Texas.
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 →
Neches Bith720172016
New Waverly619861986
Port Acres620241994
Liberty Hill620231977
Easton 2520142014
Smyrna520101995
Lance Rosier Bith320192015
Gambill Ref.320241995
Winnie219881988
Stowell219901974
Livingston220242023
Oak Grove219871983
Morton220242023
Lydia220231995
Dike220222006
Smyrna 2220232011
Chandler 2120242024
Diboll120242024
Caledonia120222022
Crossroads120242005
Chandler119681968
Sadler120242009
Alexander St120232023
Bon Wier120232017
Easton120112011

Fish Crow Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmississippimissourinew-hampshirenew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseevermontvirginiawest-virginia

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