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

Gray Catbird Population Trend in Wyoming

All statesGeneralists

Gray Catbird in Wyoming has surged: up 90% on the route-weighted index since 1970.

+90%Since 1970TrendPercent 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 →
63Routes 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 →
54YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Gray Catbird Trends in WyomingNotable 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 →

Gray Catbird has surged in Wyoming: up 90% on the route-weighted index since 1970.

Gray Catbird Population Forecast in Wyoming

If the recent trend holds, Gray Catbird in Wyoming is projected to rise about 58% by 2029 — from 0.47 in 2024 to a central estimate of 0.75 (95% range 0.32–1.2). A 5-year backtest shows a typical error of ±39.1%, with 100% of held-out values landing inside the 95% band.

+58%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 →
0.75Projected 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 →
0.32–1.295% 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 →
±39.1%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, Gray Catbird in Wyoming is projected to rise about 58% by 2029 — from 0.47 in 2024 to a central estimate of 0.75 (95% range 0.32–1.2). A 5-year backtest shows a typical error of ±39.1%, with 100% 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 →
20250.710.281.1
20260.720.291.1
20270.730.301.2
20280.740.311.2
20290.750.321.2

Gray Catbird Survey Routes in Wyoming

Routes recording Gray Catbird in Wyoming.
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 →
Alpine620241980
Wilson620241979
Moskee 3620242022
Sybille Cyn620142013
Moskee 2620212002
Otto520241970
Ne Entrance319881988
Sundance320241976
Seely 2320142003
Lovell320181993
Meeteetse320211991
Tensleep320241997
Moskee320011980
Gvnt Valley220142002
Riverside220241997
Arvada219961987
Ethete220241992
Cody120241993
Basin120241971
Wyarno120241975
Yellowstone120132013
Dubois120241968
Midvale120242017
Fontenelle120161988
Elk Horn120152015

Gray Catbird Population Trend in Other States

alabamaarizonaarkansascoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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